MLB Players with Last Names Starting with "A"
| Player | Pos | Height / Weight | Birth Date (Age) | College |
|---|---|---|---|---|
| Fernando Abad | RP | 6' 2" / 235 lbs | Dec 17, 1985 (38) | None |
| Dominic Abbadessa | CF | 5' 10" / 185 lbs | Jan 1, 1900 (124) | None |
| Cory Abbott CHW | SP | 6' 2" / 217 lbs | Sep 20, 1995 (28) | Loyola Marymount |
| Andrew Abbott CIN | SP | 6' 0" / 192 lbs | Jun 1, 1999 (24) | Virginia |
| Mick Abel PHI | SP | 6' 5" / 190 lbs | Aug 18, 2001 (22) | None |
| Blane Abeyta NYY | SP | 6' 3" / 220 lbs | Sep 4, 1998 (25) | Nevada |
| Philip Abner ARI | RP | 6' 1" / 230 lbs | May 5, 2002 (21) | Florida |
| Alaska Abney CLE | RP | 6' 1" / 205 lbs | May 5, 2000 (23) | Coastal Carolina |
| CJ Abrams WSH | SS | 6' 2" / 191 lbs | Oct 3, 2000 (23) | None |
| José Abreu HOU | 1B | 6' 3" / 250 lbs | Jan 29, 1987 (37) | None |
| Albert Abreu | RP | 6' 2" / 190 lbs | Sep 26, 1995 (28) | None |
| Osvaldo Abreu | SS | 6' 0" / 170 lbs | Jun 13, 1994 (29) | None |
| Willie Abreu | RF | 6' 4" / 225 lbs | Mar 21, 1995 (29) | Miami (FL) |
| Pablo Abreu MIL | CF | 6' 0" / 170 lbs | Oct 19, 1999 (24) | None |
| Bryan Abreu HOU | RP | 6' 1" / 230 lbs | Apr 22, 1997 (27) | None |
| Juan Abreu WSH | RP | 6' 2" / 190 lbs | Jun 12, 2000 (23) | None |
| Wilyer Abreu BOS | RF | 5' 10" / 215 lbs | Jun 24, 1999 (24) | None |
| Cristobal Abreu ATL | RP | 6' 1" / 165 lbs | Feb 2, 2006 (18) | None |
| Javier Abreu CLE | RP | 5' 11" / 150 lbs | May 24, 2006 (17) | None |
| Jesus Abreu MIA | C | 6' 1" / 190 lbs | Sep 15, 2005 (18) | None |
| Jhorvic Abreus CLE | 2B | 5' 7" / 144 lbs | Oct 27, 2005 (18) | None |
| Domingo Acevedo | RP | 6' 7" / 240 lbs | Mar 6, 1994 (30) | None |
| Angel Acevedo CHW | RP | 6' 1" / 205 lbs | Sep 19, 1998 (25) | None |
| Andy Acevedo WSH | OF | 6' 1" / 170 lbs | Nov 26, 2005 (18) | None |
| Javier Acevedo PIT | C | 5' 10" / 145 lbs | Feb 27, 2007 (17) | None |
| Dane Acker TEX | SP | 6' 2" / 189 lbs | Apr 1, 1999 (25) | Oklahoma |
| Christopher Acosta | SP | 6' 4" / 180 lbs | Jan 15, 1998 (26) | None |
| Maximo Acosta TEX | SS | 6' 1" / 187 lbs | Oct 29, 2002 (21) | None |
| Daison Acosta WSH | RP | 6' 2" / 160 lbs | Aug 24, 1998 (25) | None |
| Jose Acosta MIL | 2B | 5' 10" / 170 lbs | Mar 20, 2000 (24) | None |
| Victor Acosta | LF | 5' 11" / 160 lbs | Jun 2, 1996 (27) | None |
| Victor Acosta CIN | SS | 5' 11" / 170 lbs | Jun 10, 2004 (19) | None |
| Melvi Acosta | P | 6' 1" / 215 lbs | Jun 2, 1995 (28) | None |
| Aldry Acosta | RP | 6' 4" / 226 lbs | Sep 7, 1999 (24) | None |
| Jeisel Acosta WSH | C | 6' 0" / 170 lbs | Sep 4, 2001 (22) | None |
| Alex Acosta NYM | OF | 6' 1" / 187 lbs | Nov 24, 2005 (18) | None |
| Luis Acosta | P | 5' 11" / 185 lbs | Feb 8, 2002 (22) | None |
| Adrian Acosta LAA | P | 6' 1" / 170 lbs | May 20, 2005 (18) | None |
| Garrett Acton TB | RP | 6' 2" / 215 lbs | Jun 15, 1998 (25) | Illinois |
| Cory Acton | 2B | 6' 0" / 175 lbs | Mar 22, 1999 (25) | Georgia |
| Luisangel Acuña NYM | SS | 5' 8" / 181 lbs | Mar 12, 2002 (22) | None |
| Francisco Acuna PIT | SS | 5' 6" / 150 lbs | Jan 12, 2000 (24) | None |
| Jose Acuna CIN | SP | 6' 2" / 175 lbs | Oct 20, 2002 (21) | None |
| Samuel Acuna TOR | SP | 5' 10" / 155 lbs | Sep 13, 2005 (18) | None |
| Ronald Acuña Jr. ATL | RF | 6' 0" / 205 lbs | Dec 18, 1997 (26) | None |
| Jason Adam TB | RP | 6' 3" / 229 lbs | Aug 4, 1991 (32) | None |
| Josh Adamczewski MIL | SS | 6' 0" / 190 lbs | May 10, 2005 (18) | None |
| Cristhian Adames | SS | 6' 0" / 185 lbs | Jul 26, 1991 (32) | None |
| Willy Adames MIL | SS | 6' 1" / 219 lbs | Sep 2, 1995 (28) | None |
| Jose Adames | RP | 6' 2" / 165 lbs | Jan 17, 1993 (31) | None |
| Stiwar Adames BOS | P | 6' 2" / 180 lbs | Aug 8, 2002 (21) | None |
| Austin Adams | RP | 5' 11" / 205 lbs | Aug 19, 1986 (37) | Faulkner |
| Matt Adams | 1B | 6' 3" / 263 lbs | Aug 31, 1988 (35) | Slippery Rock |
| Lane Adams | LF | 6' 4" / 220 lbs | Nov 13, 1989 (34) | None |
| Chance Adams COL | RP | 6' 1" / 215 lbs | Aug 10, 1994 (29) | Dallas Baptist |
| Austin Adams OAK | RP | 6' 3" / 220 lbs | May 5, 1991 (32) | South Florida |
| Riley Adams WSH | C | 6' 4" / 263 lbs | Jun 26, 1996 (27) | San Diego |
| Johnny Adams | SS | 6' 0" / 200 lbs | Sep 2, 1994 (29) | Boston College |
| Jordyn Adams LAA | CF | 6' 2" / 181 lbs | Oct 18, 1999 (24) | None |
| Jake Adams | 1B | 6' 2" / 250 lbs | Dec 23, 1995 (28) | Iowa |
| Mike Adams | RP | 5' 11" / 175 lbs | Sep 7, 1994 (29) | Wagner |
| Logan Adams | SP | 6' 6" / 231 lbs | Dec 7, 1999 (24) | North Carolina State |
| Luke Adams MIL | 3B | 6' 4" / 210 lbs | Apr 24, 2004 (20) | None |
| Mason Adams CHW | P | 6' 0" / 200 lbs | Feb 23, 2000 (24) | Jacksonville |
| Cooper Adams BOS | SP | 6' 3" / 205 lbs | Jun 14, 2000 (23) | Mount St. Mary's |
| Brett Adcock | SP | 6' 1" / 225 lbs | Aug 28, 1995 (28) | Michigan |
| Ty Adcock DET | SP | 6' 0" / 213 lbs | Feb 7, 1997 (27) | Elon |
| Cody Adcock CIN | RP | 6' 4" / 210 lbs | Jun 21, 2002 (21) | Arkansas |
| Zac Addkison SD | SP | 6' 4" / 225 lbs | Jun 24, 2002 (21) | Marshall |
| Jim Adduci | RF | 6' 2" / 210 lbs | May 15, 1985 (38) | None |
| Jo Adell LAA | RF | 6' 3" / 215 lbs | Apr 8, 1999 (25) | None |
| Aramis Ademan | SS | 5' 11" / 160 lbs | Sep 13, 1998 (25) | None |
| Kwan Adkins SF | LF | 6' 2" / 195 lbs | Oct 2, 1996 (27) | Northwestern State |
| Chase Adkison STL | C | 6' 0" / 205 lbs | Jun 5, 2000 (23) | Oklahoma State |
| Tim Adleman | SP | 6' 5" / 225 lbs | Nov 13, 1987 (36) | Georgetown |
| Eric Adler CHW | RP | 6' 2" / 190 lbs | Oct 12, 2000 (23) | Wake Forest |
| Micker Adolfo | OF | 6' 4" / 225 lbs | Sep 11, 1996 (27) | None |
| Ross Adolph HOU | CF | 6' 1" / 190 lbs | Dec 17, 1996 (27) | Toledo |
| Melvin Adon BOS | RP | 6' 3" / 246 lbs | Jun 9, 1994 (29) | None |
| Joan Adon WSH | SP | 6' 2" / 247 lbs | Aug 12, 1998 (25) | None |
| Ehire Adrianza LAA | 3B | 6' 1" / 198 lbs | Aug 21, 1989 (34) | None |
| Jonah Advincula CLE | OF | 6' 1" / 197 lbs | Jan 6, 2001 (23) | Washington State |
| Josh Advocate TEX | RP | 6' 0" / 195 lbs | Jan 18, 1994 (30) | Long Beach State |
| Jake Agnos NYY | SP | 5' 11" / 207 lbs | May 23, 1998 (25) | East Carolina |
| Zach Agnos COL | RP | 6' 0" / 210 lbs | Aug 15, 2000 (23) | East Carolina |
| Gabriel Agostini WSH | SP | 6' 0" / 160 lbs | Jul 24, 2004 (19) | None |
| Dario Agrazal | SP | 6' 2" / 240 lbs | Dec 28, 1994 (29) | None |
| Ismael Agreda TEX | RP | 6' 0" / 150 lbs | Oct 8, 2003 (20) | None |
| Alvaro Aguero CHW | CF | 6' 0" / 160 lbs | Mar 19, 2003 (21) | None |
| Erlin Aguero CIN | P | 5' 10" / 154 lbs | Sep 12, 2004 (19) | None |
| Julian Aguiar CIN | SP | 6' 3" / 180 lbs | Jun 4, 2001 (22) | Cypress CC (CA) |
| Carlos Aguiar MIN | CF | 6' 2" / 175 lbs | Aug 28, 2001 (22) | None |
| Jesús Aguilar | 1B | 6' 3" / 277 lbs | Jun 30, 1990 (33) | None |
| Miguel Aguilar | RP | 5' 8" / 194 lbs | Sep 26, 1991 (32) | None |
| Ryan Aguilar | RF | 6' 2" / 168 lbs | Sep 11, 1994 (29) | Arizona |
| Angel Aguilar | 3B | 6' 0" / 170 lbs | Jun 13, 1995 (28) | None |
| Clay Aguilar NYY | RP | 6' 1" / 210 lbs | Mar 26, 1999 (25) | Houston |
| Starlin Aguilar SEA | 2B | 5' 11" / 170 lbs | Jan 26, 2004 (20) | None |
| Daniel Aguilar CLE | LF | 5' 8" / 175 lbs | Sep 16, 2000 (23) | None |
| Tayler Aguilar NYY | RF | 5' 10" / 205 lbs | Aug 15, 2000 (23) | Grand Canyon |
| Pedro Aguilar | - | - / - | - | - |
| Yedrinson Aguilera NYY | RP | 5' 11" / 165 lbs | Sep 10, 2003 (20) | None |
| Freiderman Aguilera PHI | OF | 6' 0" / 163 lbs | - | None |
| Robert Ahlstrom TEX | RP | 6' 3" / 195 lbs | Jun 19, 1999 (24) | Oregon |
| Nick Ahmed SF | SS | 6' 2" / 201 lbs | Mar 15, 1990 (34) | Connecticut |
| Mike Ahmed | 3B | 6' 2" / 195 lbs | Jan 20, 1992 (32) | Holy Cross |
| Maui Ahuna SF | SS | 6' 1" / 170 lbs | Mar 11, 2002 (22) | Tennessee |
| John Aiello | 3B | 6' 2" / 215 lbs | Feb 14, 1997 (27) | Wake Forest |
| Keegan Akin BAL | RP | 6' 0" / 240 lbs | Apr 1, 1995 (29) | Western Michigan |
| Shogo Akiyama | CF | 6' 0" / 190 lbs | Apr 16, 1988 (36) | None |
| Ben Aklinski | LF | 5' 11" / 210 lbs | Jun 3, 1996 (27) | Kentucky |
| R.J. Alaniz | RP | 6' 4" / 219 lbs | Jun 14, 1991 (32) | None |
| Luiyin Alastre MIL | SS | 5' 10" / 160 lbs | Sep 27, 2005 (18) | None |
| Max Alba DET | P | 6' 5" / 215 lbs | Jul 15, 1999 (24) | Liberty |
| Glenn Albanese Jr. LAA | RP | 6' 7" / 223 lbs | Oct 22, 1998 (25) | Louisville |
| Matt Albers | RP | 6' 1" / 225 lbs | Jan 20, 1983 (41) | San Jacinto JC (TX) |
| Andrew Albers | SP | 6' 1" / 200 lbs | Oct 6, 1985 (38) | Kentucky |
| Hanser Alberto | 3B | 5' 11" / 215 lbs | Oct 17, 1992 (31) | None |
| Jose Albertos CHC | RP | 6' 1" / 185 lbs | Nov 7, 1998 (25) | None |
| Alexander Albertus LAD | SS | 6' 1" / 176 lbs | Oct 27, 2004 (19) | None |
| Ozzie Albies ATL | 2B | 5' 8" / 165 lbs | Jan 7, 1997 (27) | None |
| Jared Albir | SP | 6' 2" / 161 lbs | Aug 27, 2002 (21) | None |
| Lou Albrecht PHI | C | 6' 0" / 210 lbs | Nov 7, 2001 (22) | Central Arizona JC |
| Luke Albright ARI | SP | 6' 4" / 215 lbs | Dec 13, 1999 (24) | Kent State |
| Mason Albright COL | SP | 6' 0" / 190 lbs | Nov 26, 2002 (21) | None |
| Jorge Alcala MIN | RP | 6' 3" / 205 lbs | Jul 28, 1995 (28) | None |
| Gilberto Alcala PIT | SP | 6' 3" / 175 lbs | Oct 3, 2002 (21) | None |
| Luis Alcala PHI | RP | 6' 1" / 158 lbs | Nov 7, 2000 (23) | None |
| Damian Alcala TB | P | 6' 1" / 164 lbs | Jun 10, 2005 (18) | None |
| Raúl Alcántara SEA | SP | 6' 4" / 220 lbs | Dec 4, 1992 (31) | None |
| Arismendy Alcantara | 2B | 5' 10" / 170 lbs | Oct 29, 1991 (32) | None |
| Victor Alcántara | RP | 6' 2" / 190 lbs | Apr 3, 1993 (31) | None |
| Sergio Alcántara ARI | 3B | 5' 9" / 151 lbs | Jul 10, 1996 (27) | None |
| Sandy Alcantara MIA | SP | 6' 5" / 200 lbs | Sep 7, 1995 (28) | None |
| Kevin Alcántara CHC | CF | 6' 6" / 188 lbs | Jul 12, 2002 (21) | None |
| Deivid Alcantara | RF | 6' 2" / 180 lbs | Jun 14, 2003 (20) | None |
| Elisandro Alcantara | C | 6' 0" / 175 lbs | Oct 29, 2002 (21) | None |
| Alexander Alcantara CIN | SS | 5' 9" / 165 lbs | Oct 25, 2005 (18) | None |
| Kelvin Alcantara CHC | CF | 6' 6" / 188 lbs | Jul 12, 2002 (21) | None |
| Ismael Alcantara | CF | 6' 1" / 165 lbs | Sep 25, 1998 (25) | None |
| Jhon Alcantara BOS | P | 6' 4" / 175 lbs | Sep 13, 2005 (18) | None |
| Austin Aldeano CLE | SP | 6' 1" / 180 lbs | Jun 6, 2004 (19) | None |
| Samuel Aldegheri PHI | SP | 6' 1" / 180 lbs | Sep 19, 2001 (22) | None |
| Alfredo Alderete PHI | SS | 5' 9" / 150 lbs | Feb 16, 2004 (20) | None |
| Kemp Alderman MIA | OF | 6' 3" / 250 lbs | Jul 20, 2002 (21) | Mississippi |
| Pablo Aldonis WSH | SP | 6' 1" / 160 lbs | Mar 21, 2002 (22) | None |
| Carter Aldrete | 2B | 6' 2" / 205 lbs | Oct 12, 1997 (26) | Arizona State |
| Jack Aldrich | SP | 6' 0" / 200 lbs | Jun 12, 1999 (24) | Tulane |
| Fran Alduey CLE | SS | 5' 7" / 140 lbs | Jan 7, 2004 (20) | None |
| Frailin Alejo CHC | P | 5' 11" / 150 lbs | Oct 8, 2006 (17) | None |
| Stephen Alemais PIT | SS | 5' 11" / 190 lbs | Apr 12, 1995 (29) | Tulane |
| Franco Aleman CLE | RP | 6' 6" / 235 lbs | Jun 26, 2000 (23) | Florida |
| Scott Alexander OAK | RP | 6' 2" / 195 lbs | Jul 10, 1989 (34) | Sonoma State (CA) |
| Tyler Alexander | SP | 6' 1" / 180 lbs | Sep 22, 1991 (32) | Florida International |
| Blaze Alexander ARI | SS | 5' 11" / 160 lbs | Jun 11, 1999 (24) | None |
| CJ Alexander KC | 3B | 6' 3" / 215 lbs | Jul 17, 1996 (27) | State College of Florida |
| Jason Alexander BOS | SP | 6' 2" / 227 lbs | Mar 1, 1993 (31) | Menlo (CA) |
| Tyler Alexander TB | SP | 6' 2" / 203 lbs | Jul 14, 1994 (29) | Texas Christian |
| Hill Alexander | CF | 6' 2" / 200 lbs | Jun 13, 1996 (27) | None |
| Evan Alexander | LF | 6' 2" / 175 lbs | Feb 26, 1998 (26) | None |
| Jesus Alexander SF | C | 6' 2" / 185 lbs | Sep 4, 2005 (18) | None |
| A.J. Alexy MIN | SP | 6' 4" / 195 lbs | Apr 21, 1998 (26) | None |
| Jorge Alfaro CHC | C | 6' 2" / 249 lbs | Jun 11, 1993 (30) | None |
| Jhoxan Alfaro NYM | P | 6' 1" / 196 lbs | Jun 22, 2003 (20) | None |
| Angel Alfonseca NYM | RP | 5' 10" / 171 lbs | Jan 10, 2001 (23) | None |
| Pedro Alfonseca CIN | CF | 6' 0" / 178 lbs | Sep 4, 1997 (26) | Black Hawk CC (IL) |
| Michael Alfonso | SS | 6' 3" / 205 lbs | Jan 8, 2003 (21) | None |
| Eliezer Alfonzo DET | C | 5' 10" / 155 lbs | Feb 7, 1979 (45) | None |
| Omar Alfonzo PIT | C | 6' 1" / 180 lbs | Aug 3, 2003 (20) | None |
| Anthony Alford CIN | CF | 6' 1" / 210 lbs | Jul 20, 1994 (29) | Mississippi |
| Peyton Alford SEA | RP | 6' 0" / 190 lbs | Aug 15, 1997 (26) | Virginia Tech |
| Pablo Aliendo CHC | C | 6' 0" / 170 lbs | May 29, 2001 (22) | None |
| Matt Alifano | 3B | 6' 2" / 195 lbs | Dec 31, 2000 (23) | Adelphi |
| Matthew Allan NYM | SP | 6' 3" / 225 lbs | Apr 17, 2001 (23) | None |
| Kolby Allard PHI | SP | 6' 1" / 195 lbs | Aug 13, 1997 (26) | None |
| Cam Alldred PIT | RP | 6' 3" / 205 lbs | Jul 25, 1996 (27) | Cincinnati |
| Blake Allemand | 2B | 5' 10" / 175 lbs | Jul 1, 1992 (31) | Texas A&M |
| Cody Allen | RP | 6' 1" / 210 lbs | Nov 20, 1988 (35) | High Point |
| Austin Allen NYM | C | 6' 2" / 220 lbs | Jan 16, 1994 (30) | Florida Tech |
| Logan Allen ARI | SP | 6' 3" / 200 lbs | May 23, 1997 (26) | None |
| Greg Allen NYY | CF | 6' 0" / 185 lbs | Mar 15, 1993 (31) | San Diego State |
| Nick Allen OAK | SS | 5' 8" / 166 lbs | Oct 8, 1998 (25) | None |
| Logan Allen CLE | SP | 6' 0" / 190 lbs | Sep 5, 1998 (25) | Florida International |
| Tanner Allen MIA | LF | 5' 11" / 190 lbs | Jun 5, 1998 (25) | Mississippi State |
| Brady Allen DET | RF | 6' 1" / 218 lbs | Sep 3, 1999 (24) | South Carolina |
| Iverson Allen PIT | OF | 6' 0" / 160 lbs | Aug 18, 2007 (16) | None |
| Jay Allen II CIN | CF | 6' 2" / 190 lbs | Nov 22, 2002 (21) | None |
| Chris Alleyne LAD | LF | 5' 10" / 190 lbs | Nov 13, 1998 (25) | Maryland |
| Nick Allgeyer | SP | 6' 3" / 210 lbs | Feb 3, 1996 (28) | Iowa |
| Stetson Allie | RP | 6' 2" / 244 lbs | Mar 13, 1991 (33) | None |
| Luis Almanzar SD | SS | 6' 0" / 205 lbs | Nov 1, 1999 (24) | None |
| Stiven Almanzar MIA | RP | 5' 10" / 155 lbs | Dec 24, 2001 (22) | None |
| Jhan Almeida CIN | P | 6' 3" / 185 lbs | Apr 29, 2005 (18) | None |
| Diogenes Almengo | RP | 6' 2" / 190 lbs | Jun 2, 1995 (28) | None |
| Luis Almeyda BAL | SS | 6' 2" / 180 lbs | Apr 17, 2006 (18) | None |
| Luis Almeyda BAL | SS | 6' 2" / 175 lbs | - | None |
| Abraham Almonte | CF | 5' 10" / 223 lbs | Jun 27, 1989 (34) | None |
| Yency Almonte CHC | RP | 6' 5" / 223 lbs | Jun 4, 1994 (29) | None |
| Jose Almonte | RF | 6' 3" / 205 lbs | Sep 9, 1996 (27) | None |
| Darlin Almonte ARI | P | 5' 7" / 150 lbs | Dec 16, 2002 (21) | None |
| Ariel Almonte CIN | RF | 6' 1" / 170 lbs | Dec 1, 2003 (20) | None |
| Frandy Almonte TEX | SS | 5' 8" / 150 lbs | Oct 16, 2003 (20) | None |
| Lisandro Almonte ARI | SP | 6' 1" / 170 lbs | Jun 11, 2002 (21) | None |
| Jonathan Almonte | RP | 6' 0" / 175 lbs | Aug 9, 2000 (23) | None |
| Sebastian Almonte | 2B | 6' 0" / 185 lbs | Oct 22, 1999 (24) | None |
| Jeremy Almonte MIA | C | 6' 0" / 170 lbs | Oct 12, 2005 (18) | None |
| Khris Almonte MIA | OF | 6' 1" / 160 lbs | Sep 6, 2005 (18) | None |
| Keury Almonte PIT | RP | 6' 2" / 190 lbs | Oct 16, 2005 (18) | None |
| Hancel Almonte STL | OF | 6' 1" / 193 lbs | Dec 6, 2005 (18) | None |
| Albert Almora Jr. ARI | CF | 6' 2" / 190 lbs | Apr 16, 1994 (30) | None |
| Yonder Alonso | 1B | 6' 1" / 230 lbs | Apr 8, 1987 (37) | Miami (FL) |
| Pete Alonso NYM | 1B | 6' 3" / 245 lbs | Dec 7, 1994 (29) | Florida |
| Juan Alonso LAD | CF | 6' 0" / 180 lbs | Nov 3, 2003 (20) | None |
| Garvin Alston WSH | RP | 6' 4" / 175 lbs | Mar 12, 1997 (27) | South Carolina-Aiken |
| Dan Altavilla KC | RP | 5' 11" / 220 lbs | Sep 8, 1992 (31) | Mercyhurst |
| Aaron Altherr | RF | 6' 5" / 215 lbs | Jan 14, 1991 (33) | None |
| Josh Altmann | 2B | 6' 3" / 190 lbs | Jul 6, 1994 (29) | Olivet Nazarene |
| Jose Altuve HOU | 2B | 5' 6" / 167 lbs | May 6, 1990 (33) | None |
| Brayan Altuve | C | 5' 11" / 160 lbs | Jan 22, 2003 (21) | None |
| Jake Alu WSH | 3B | 5' 10" / 195 lbs | Apr 6, 1997 (27) | Boston College |
| Elvis Alvarado MIA | RP | 6' 4" / 183 lbs | Feb 23, 1999 (25) | None |
| Cristian Alvarado | RP | 6' 3" / 185 lbs | Sep 20, 1994 (29) | None |
| José Alvarado PHI | RP | 6' 2" / 245 lbs | May 21, 1995 (28) | None |
| Edwar Alvarado COL | C | 5' 11" / 175 lbs | Sep 16, 2002 (21) | None |
| Wilfred Alvarado OAK | P | 6' 3" / 190 lbs | Nov 20, 2005 (18) | None |
| José Álvarez | RP | 5' 11" / 195 lbs | May 6, 1989 (34) | None |
| Henderson Alvarez | SP | 6' 0" / 205 lbs | Apr 18, 1990 (34) | None |
| R.J. Alvarez | RP | 6' 2" / 225 lbs | Jun 8, 1991 (32) | Florida Atlantic |
| Pedro Álvarez | 3B | 6' 3" / 250 lbs | Feb 6, 1987 (37) | Vanderbilt |
| Yadier Álvarez | SP | 6' 3" / 175 lbs | Mar 7, 1996 (28) | None |
| Eliezer Álvarez | 2B | 5' 11" / 165 lbs | Oct 15, 1994 (29) | None |
| Yordan Alvarez HOU | LF | 6' 5" / 237 lbs | Jun 27, 1997 (26) | None |
| Eddy Alvarez BOS | 3B | 5' 9" / 178 lbs | Jan 30, 1990 (34) | Salt Lake CC (UT) |
| Roberto Alvarez | C | 5' 11" / 151 lbs | Jul 28, 1999 (24) | None |
| Francisco Alvarez NYM | C | 5' 10" / 233 lbs | Nov 19, 2001 (22) | None |
| Daniel Alvarez | RP | 6' 3" / 228 lbs | Jun 28, 1996 (27) | None |
| Manuel Alvarez | RP | 6' 3" / 200 lbs | Sep 17, 1995 (28) | None |
| Angel Lopez Alvarez CLE | C | 5' 10" / 194 lbs | Mar 14, 1997 (27) | Northampton CC (PA) |
| Armando Alvarez OAK | 3B | 6' 0" / 195 lbs | Jul 14, 1994 (29) | Eastern Kentucky |
| Yorkislandy Alvarez | SS | 6' 1" / 170 lbs | Mar 17, 1999 (25) | None |
| Andrew Alvarez WSH | RP | 6' 3" / 215 lbs | Jun 13, 1999 (24) | Cal Poly |
| Andres Alvarez PIT | SS | 5' 10" / 175 lbs | Mar 29, 1997 (27) | Washington State |
| Ignacio Alvarez ATL | 3B | 6' 0" / 190 lbs | Apr 11, 2003 (21) | Riverside CC (CA) |
| Nelson Alvarez TB | RP | 6' 4" / 220 lbs | Jun 11, 1998 (25) | South Florida |
| Jose Alvarez | C | 6' 1" / 180 lbs | Jun 4, 2000 (23) | None |
| Rafael Alvarez CHW | 3B | 6' 2" / 190 lbs | Feb 13, 2005 (19) | None |
| Frank Alvarez | RP | 6' 3" / 203 lbs | Jan 16, 1999 (25) | None |
| Hayden Alvarez LAA | OF | 6' 3" / 190 lbs | Mar 19, 2007 (17) | None |
| Jared Alvarez-Lopez | C | 6' 2" / 200 lbs | Jan 18, 2001 (23) | None |
| Xavier Alvero BAL | SP | 6' 2" / 170 lbs | Dec 1, 2005 (18) | None |
| Xacier Alvero BAL | RP | - / - | - | None |
| Alexander Alzi BOS | OF | 5' 11" / 185 lbs | Oct 27, 2006 (17) | None |
| Adbert Alzolay CHC | RP | 6' 1" / 208 lbs | Mar 1, 1995 (29) | None |
| Adael Amador COL | 2B | 6' 0" / 200 lbs | Apr 11, 2003 (21) | None |
| Daniel Amaral | LF | 6' 0" / 190 lbs | Mar 7, 1997 (27) | UCLA |
| Fernando Amaro TEX | C | 5' 10" / 180 lbs | Nov 1, 2001 (22) | None |
| Miguel Amaya CHC | C | 6' 0" / 230 lbs | Mar 9, 1999 (25) | None |
| Jacob Amaya HOU | SS | 6' 0" / 180 lbs | Sep 3, 1998 (25) | None |
| Luis Amaya MIL | P | 5' 11" / 160 lbs | Aug 26, 1998 (25) | None |
| Carlos Amaya OAK | C | 5' 10" / 165 lbs | Dec 28, 2001 (22) | None |
| Trey Amburgey | LF | 6' 2" / 210 lbs | Oct 24, 1994 (29) | St. Petersburg JC (FL) |
| Michael Amditis | C | 5' 11" / 190 lbs | Aug 14, 1997 (26) | Miami (FL) |
| Kyle Amendt ARI | RP | 6' 5" / 237 lbs | Apr 5, 2000 (24) | Dallas Baptist |
| Edmond Americaan | CF | 6' 1" / 170 lbs | Mar 26, 1997 (27) | Chipola JC (FL) |
| Ryan Ammons NYM | RP | 6' 0" / 205 lbs | Apr 17, 2001 (23) | Clemson |
| Brayan Amoroso STL | OF | 6' 2" / 198 lbs | Jul 7, 2007 (16) | None |
| Yeuri Amparo | RF | 6' 2" / 170 lbs | Sep 25, 2022 (1) | None |
| Felix Amparo BAL | SS | 5' 10" / 180 lbs | Feb 27, 2006 (18) | None |
| Felix Amparo BAL | SS | 5' 10" / - | - | None |
| Angel Anazco TEX | P | 6' 3" / 195 lbs | Nov 17, 2001 (22) | None |
| Jake Anchia SEA | C | 6' 1" / 210 lbs | Mar 5, 1997 (27) | Nova Southeastern (FL) |
| Chase Anderson BOS | RP | 6' 1" / 210 lbs | Nov 30, 1987 (36) | Oklahoma |
| Tyler Anderson LAA | SP | 6' 2" / 220 lbs | Dec 30, 1989 (34) | Oregon |
| Brett Anderson | SP | 6' 4" / 230 lbs | Feb 1, 1988 (36) | None |
| Tim Anderson MIA | SS | 6' 1" / 185 lbs | Jun 23, 1993 (30) | East Central CC (MS) |
| Cody Anderson | RP | 6' 4" / 240 lbs | Sep 14, 1990 (33) | Feather River CC (CA) |
| Drew Anderson DET | RP | 6' 3" / 205 lbs | Mar 22, 1994 (30) | None |
| Blake Anderson | C | 6' 3" / 180 lbs | Jan 5, 1996 (28) | None |
| Brian Anderson SEA | 3B | 6' 2" / 215 lbs | May 19, 1993 (30) | Arkansas |
| Ian Anderson ATL | SP | 6' 3" / 170 lbs | May 2, 1998 (25) | None |
| Shaun Anderson TEX | SP | 6' 4" / 228 lbs | Oct 29, 1994 (29) | Florida |
| Justin Anderson CHW | RP | 6' 3" / 230 lbs | Sep 28, 1992 (31) | Texas-San Antonio |
| Nick Anderson KC | RP | 6' 4" / 205 lbs | Jul 5, 1990 (33) | Mayville State |
| Jack Anderson DET | RP | 6' 3" / 197 lbs | Jan 10, 1994 (30) | Penn State |
| Tanner Anderson | SP | 6' 2" / 203 lbs | May 27, 1993 (30) | Harvard |
| Ryan Anderson TEX | CF | 6' 1" / 205 lbs | Aug 30, 1995 (28) | UC Davis |
| Grant Anderson TEX | RP | 6' 0" / 180 lbs | Jun 21, 1997 (26) | McNeese State |
| Luke Anderson OAK | P | 6' 2" / 205 lbs | Aug 5, 1998 (25) | Central Oklahoma |
| Aidan Anderson TEX | RP | 6' 1" / 195 lbs | Jun 21, 1997 (26) | McNesse State |
| Ryan Anderson NYY | RP | 6' 6" / 205 lbs | Sep 9, 1998 (25) | Nevada |
| Max Anderson DET | 3B | 6' 0" / 215 lbs | Feb 28, 2002 (22) | Nebraska |
| Casey Anderson ARI | RP | 6' 4" / 185 lbs | Jul 31, 2000 (23) | Utah Valley |
| Antonio Anderson BOS | SS | 6' 3" / 205 lbs | Jun 28, 2005 (18) | None |
| Branell Anderson DET | P | 6' 4" / 180 lbs | May 23, 2007 (16) | None |
| Jose Anderson MIL | OF | 6' 0" / 183 lbs | Nov 28, 2006 (17) | None |
| Lerwin Andrade | SS | 5' 7" / 137 lbs | Mar 21, 2004 (20) | None |
| Dervin Andrade PHI | C | 6' 0" / 200 lbs | Nov 1, 2003 (20) | None |
| John Andreoli | LF | 6' 1" / 215 lbs | Jun 9, 1990 (33) | Connecticut |
| Merfy Andrew BOS | P | 6' 1" / 200 lbs | Nov 12, 1996 (27) | ASA College Miami (FL) |
| Clayton Andrews NYY | RP | 5' 6" / 160 lbs | Jan 4, 1997 (27) | Long Beach State |
| Tanner Andrews SF | RP | 6' 3" / 220 lbs | Nov 15, 1995 (28) | Purdue |
| EJ Andrews Jr, COL | RF | 6' 1" / 210 lbs | Sep 28, 2000 (23) | Fresno State |
| Matt Andriese MIA | RP | 6' 2" / 215 lbs | Aug 28, 1989 (34) | UC Riverside |
| Elvis Andrus ARI | SS | 6' 0" / 210 lbs | Aug 26, 1988 (35) | None |
| Miguel Andujar OAK | LF | 6' 0" / 211 lbs | Mar 2, 1995 (29) | None |
| Horacio Andujar CHW | RP | 6' 2" / 161 lbs | Jan 14, 1999 (25) | None |
| Luis Andujar ARI | P | 6' 2" / 160 lbs | Aug 16, 2005 (18) | None |
| Ashly Andujar COL | SS | 6' 1" / 163 lbs | Jul 29, 2007 (16) | None |
| Euribiel Angeles OAK | 2B | 5' 11" / 175 lbs | May 11, 2002 (21) | None |
| Roman Angelo ARI | RP | 6' 5" / 220 lbs | May 17, 2000 (23) | Fresno State |
| Kris Anglin DET | SP | 5' 11" / 175 lbs | Aug 9, 2001 (22) | Howard JC (TX) |
| Mack Anglin KC | RP | 6' 4" / 220 lbs | Jul 5, 2000 (23) | Clemson |
| Argenis Angulo | RP | 6' 3" / 225 lbs | Feb 26, 1994 (30) | Ranger College |
| Andres Angulo | C | 5' 10" / 181 lbs | Sep 5, 1997 (26) | None |
| Roman Anthony BOS | CF | 6' 3" / 200 lbs | May 13, 2004 (19) | None |
| Keaton Anthony PHI | OF | 6' 4" / 211 lbs | Jun 24, 2001 (22) | Iowa |
| Mike Antico STL | CF | 5' 10" / 200 lbs | Feb 16, 1998 (26) | Texas |
| Chase Antle | RP | 6' 2" / 215 lbs | Feb 16, 1997 (27) | Coastal Carolina |
| Jesus Anton NYM | RP | 6' 3" / 175 lbs | Feb 17, 2006 (18) | None |
| Tejay Antone CIN | SP | 6' 4" / 230 lbs | Dec 5, 1993 (30) | Weatherford JC (TX) |
| Donovan Antonia NYM | C | 5' 10" / 182 lbs | Aug 13, 2003 (20) | None |
| Aaron Antonini STL | C | 6' 0" / 200 lbs | Jul 27, 1998 (25) | Middle Tennessee State |
| Yasel Antuna | SS | 6' 2" / 198 lbs | Oct 26, 1999 (24) | None |
| Wuilfredo Antunez CLE | CF | 6' 0" / 150 lbs | May 16, 2002 (21) | None |
| Rolando Anzola LAA | RP | 6' 2" / 170 lbs | May 31, 2005 (18) | None |
| Norichika Aoki | RF | 5' 9" / 180 lbs | Jan 5, 1982 (42) | Waseda (Japan) |
| Miguel Aparicio | CF | 6' 0" / 195 lbs | Mar 17, 1999 (25) | None |
| Garrett Apker DET | P | 6' 5" / 195 lbs | Sep 18, 1999 (24) | None |
| Yhoangel Aponte TOR | CF | 5' 11" / 190 lbs | Feb 12, 2004 (20) | None |
| Miguel Aponte TOR | OF | - / - | Feb 12, 2004 (20) | None |
| Oswaldo Aponte MIA | SP | 6' 2" / 185 lbs | May 2, 2006 (17) | None |
| Oscar Aponte ARI | OF | 5' 11" / 160 lbs | Oct 16, 2006 (17) | None |
| Sherten Apostel | 3B | 6' 4" / 200 lbs | Mar 11, 1999 (25) | None |
| Mark Appel | SP | 6' 5" / 220 lbs | Jul 15, 1991 (32) | Stanford |
| Aristides Aquino | RF | 6' 4" / 220 lbs | Apr 22, 1994 (30) | None |
| Stiward Aquino LAA | SP | 6' 6" / 170 lbs | Jun 20, 1999 (24) | None |
| Charlis Aquino SD | SS | 6' 2" / 165 lbs | Nov 18, 2001 (22) | None |
| Ismael Aquino KC | RP | 6' 2" / 170 lbs | Sep 2, 1998 (25) | None |
| Patricio Aquino MIL | SP | 6' 0" / 175 lbs | May 1, 2003 (20) | None |
| Jose Aquino | SP | 6' 3" / 175 lbs | Jun 27, 2002 (21) | None |
| Angel Aquino PIT | OF | 6' 5" / 207 lbs | Jun 18, 2005 (18) | None |
| Cesar Aquino PIT | P | 6' 1" / 201 lbs | - | None |
| Tim Arakawa LAA | 2B | 5' 8" / 175 lbs | Apr 18, 1993 (31) | Oklahoma State |
| Jonathan Aranda TB | 2B | 6' 0" / 210 lbs | May 23, 1998 (25) | None |
| Víctor Arano | RP | 6' 2" / 242 lbs | Feb 7, 1995 (29) | None |
| Pedro Araujo | RP | 6' 3" / 215 lbs | Jul 2, 1993 (30) | None |
| Juan Araujo NYY | 2B | 5' 11" / 158 lbs | Dec 15, 2006 (17) | None |
| Jonathan Araúz LAD | 2B | 6' 0" / 195 lbs | Aug 3, 1998 (25) | None |
| Adrian Aray PIT | P | 6' 2" / 175 lbs | Sep 15, 2006 (17) | None |
| Chris Archer | SP | 6' 2" / 195 lbs | Sep 26, 1988 (35) | None |
| Tristan Archer | RP | 6' 2" / 200 lbs | Oct 18, 1990 (33) | Tennessee Tech |
| Matt Archer | 2B | 5' 10" / 180 lbs | Aug 13, 2000 (23) | Lynn (FL) |
| Pascual Archila TOR | OF | 5' 10" / 172 lbs | Jan 23, 2007 (17) | None |
| Francisco Arcia | C | 5' 11" / 200 lbs | Sep 14, 1989 (34) | None |
| Orlando Arcia ATL | SS | 6' 0" / 187 lbs | Aug 4, 1994 (29) | None |
| Carlos Arcila | C | 5' 11" / 155 lbs | Jan 2, 2004 (20) | None |
| Wilinyer Ardiles CLE | P | 5' 11" / 140 lbs | Aug 14, 2007 (16) | None |
| Silas Ardoin BAL | C | 6' 0" / 215 lbs | Sep 19, 2000 (23) | Texas |
| Jadher Areinamo MIL | SS | 5' 8" / 160 lbs | Nov 28, 2003 (20) | None |
| Luis Arejula NYY | P | 6' 1" / 170 lbs | Feb 20, 2002 (22) | None |
| Derek Arellan MIA | SP | 6' 2" / 175 lbs | Feb 19, 2006 (18) | None |
| Nolan Arenado STL | 3B | 6' 2" / 215 lbs | Apr 16, 1991 (33) | None |
| Jonah Arenado | 3B | 6' 4" / 240 lbs | Feb 3, 1995 (29) | None |
| Nathan Arends OAK | P | 6' 2" / 180 lbs | Sep 23, 2006 (17) | None |
| Angel Arevalo OAK | CF | 5' 11" / 160 lbs | Oct 2, 2003 (20) | None |
| Anthony Arguelles WSH | RP | 5' 10" / 195 lbs | Aug 16, 2000 (23) | Virginia Tech |
| Gabriel Arias CLE | SS | 6' 1" / 217 lbs | Feb 27, 2000 (24) | None |
| Andry Arias WSH | OF | 6' 3" / 180 lbs | Jun 19, 2000 (23) | None |
| Diosbel Arias | SS | 6' 2" / 190 lbs | Jul 21, 1996 (27) | None |
| Luarbert Arias MIA | SP | 6' 2" / 176 lbs | Dec 12, 2000 (23) | None |
| Skylar Arias | RP | 6' 3" / 190 lbs | Jun 30, 1997 (26) | Tallahassee CC |
| Dayeison Arias | RP | 6' 1" / 160 lbs | Jan 7, 1997 (27) | None |
| Jaime Arias CLE | SP | 6' 0" / 210 lbs | Jan 21, 1999 (25) | Fresno State |
| Gabriel Arias TB | P | 5' 11" / 169 lbs | Oct 13, 2003 (20) | None |
| Brian Arias NYY | SP | 6' 0" / 177 lbs | Nov 18, 2003 (20) | None |
| Roderick Arias NYY | SS | 6' 0" / 178 lbs | Sep 9, 2004 (19) | None |
| Leandro Arias BAL | SS | 6' 1" / 155 lbs | Feb 5, 2005 (19) | None |
| Bryan Arias HOU | 2B | 6' 0" / 205 lbs | Jun 6, 1997 (26) | Texas-San Antonio |
| Rayner Arias SF | CF | 6' 2" / 185 lbs | Apr 29, 2006 (17) | None |
| Amador Arias | 3B | 5' 11" / 143 lbs | Aug 25, 2000 (23) | None |
| Michael Arias CHC | SP | 6' 0" / 155 lbs | Nov 15, 2001 (22) | None |
| Franklin Arias BOS | SS | 6' 0" / 165 lbs | Jan 9, 1997 (27) | None |
| Wander Arias WSH | RP | 6' 4" / 230 lbs | Nov 3, 1999 (24) | None |
| Jesmaylin Arias SD | OF | 5' 11" / 175 lbs | Apr 20, 2007 (17) | None |
| Gregori Arias MIA | SS | 6' 0" / 160 lbs | Oct 19, 2006 (17) | None |
| Jalvin Arias PHI | OF | 6' 2" / 230 lbs | Oct 1, 2006 (17) | None |
| Dariel Arias CLE | SS | 6' 0" / 152 lbs | Oct 7, 2006 (17) | None |
| Robert Arias CLE | OF | 6' 1" / 168 lbs | Sep 13, 2006 (17) | None |
| Andres Arias TOR | OF | 6' 4" / 180 lbs | Oct 6, 2006 (17) | None |
| Eligio Arias PHI | P | 6' 7" / 230 lbs | Mar 6, 2003 (21) | None |
| Victor Arias TOR | LF | 5' 11" / 150 lbs | Aug 24, 2003 (20) | None |
| Daury Arias NYY | CF | 5' 11" / 172 lbs | - | None |
| Kohei Arihara | SP | 6' 2" / 210 lbs | Aug 11, 1992 (31) | Waseda (Japan) |
| Luis Ariza TB | SS | 5' 11" / 155 lbs | May 8, 2004 (19) | None |
| Justin Armbruester BAL | SP | 6' 4" / 235 lbs | Oct 21, 1998 (25) | New Mexico |
| Erubiel Armenta PHI | RP | 6' 3" / 189 lbs | Mar 11, 2000 (24) | None |
| Lazaro Armenteros OAK | LF | 6' 0" / 182 lbs | May 22, 1999 (24) | None |
| Rogelio Armenteros | SP | 6' 1" / 215 lbs | Jun 30, 1994 (29) | None |
| Shawn Armstrong TB | RP | 6' 2" / 225 lbs | Sep 11, 1990 (33) | East Carolina |
| Ivan Armstrong LAA | RP | 6' 5" / 247 lbs | Jul 27, 2000 (23) | None |
| Sam Armstrong CHC | SP | 6' 2" / 245 lbs | Sep 26, 2000 (23) | Old Dominion |
| Zach Arnold PHI | SS | 6' 2" / 205 lbs | Jun 13, 2001 (22) | Houston |
| Bryce Arnold TOR | SS | 5' 10" / 175 lbs | Jul 24, 2001 (22) | Campbell |
| Jonathan Aro | RP | 6' 0" / 235 lbs | Oct 10, 1990 (33) | None |
| Vince Arobio | RP | 5' 11" / 185 lbs | Mar 31, 1995 (29) | Pacific |
| Erick Arosemena SF | CF | 6' 0" / 170 lbs | Apr 2, 2005 (19) | None |
| Pablo Arosemena CLE | C | 5' 8" / 154 lbs | Feb 17, 2006 (18) | None |
| Randy Arozarena TB | LF | 5' 11" / 185 lbs | Feb 28, 1995 (29) | None |
| Luis Arraez MIA | 2B | 5' 10" / 175 lbs | Apr 9, 1997 (27) | None |
| Breilin Arredondo BOS | RP | 5' 11" / 151 lbs | Jul 10, 2005 (18) | None |
| Luis Arredondo BOS | SS | 6' 3" / 187 lbs | Mar 6, 2006 (18) | None |
| Esmeiquel Arrieche TOR | C | 5' 7" / 152 lbs | Dec 21, 2006 (17) | None |
| Gio Arriera DET | SP | 6' 2" / 220 lbs | Jun 7, 1998 (25) | Palm Beach State JC (FL) |
| Jake Arrieta | SP | 6' 4" / 230 lbs | Mar 6, 1986 (38) | Texas Christian |
| Randy Arrieta | CF | 5' 11" / 150 lbs | Nov 1, 2003 (20) | None |
| Spencer Arrighetti HOU | SP | 6' 2" / 186 lbs | Jan 2, 2000 (24) | Louisiana-Lafayette |
| Junior Arrojo MIA | SS | 5' 10" / 195 lbs | May 29, 1988 (35) | Florida International |
| Christian Arroyo MIL | 2B | 6' 1" / 220 lbs | May 30, 1995 (28) | None |
| Carlos Arroyo ATL | 2B | 5' 9" / 170 lbs | Jul 11, 2001 (22) | None |
| Edwin Arroyo CIN | SS | 6' 0" / 175 lbs | Aug 25, 2003 (20) | None |
| Michael Arroyo SEA | SS | 5' 10" / 170 lbs | Nov 3, 2004 (19) | None |
| Samuel Arroyo BOS | C | 5' 11" / 160 lbs | May 23, 2007 (16) | None |
| J.T. Arruda WSH | SS | 5' 10" / 180 lbs | Oct 20, 1997 (26) | Fresno State |
| Humberto Arteaga | SS | 6' 1" / 160 lbs | Jan 23, 1994 (30) | None |
| Aeverson Arteaga SF | SS | 6' 1" / 170 lbs | Mar 16, 2003 (21) | None |
| Andre Arthur MIA | OF | 6' 4" / 185 lbs | Jun 9, 2003 (20) | None |
| Andru Arthur STL | OF | 6' 1" / 176 lbs | Nov 1, 2005 (18) | None |
| D.J. Artis CHC | LF | 5' 9" / 165 lbs | Mar 20, 1997 (27) | Liberty |
| Johnny Ascanio CIN | SS | 5' 10" / 150 lbs | Jul 4, 2003 (20) | None |
| Cody Asche | 3B | 6' 1" / 205 lbs | Jun 30, 1990 (33) | Nebraska |
| Enderson Asencio NYM | OF | 6' 4" / 195 lbs | Mar 17, 2006 (18) | None |
| Konnor Ash PHI | P | 5' 11" / 191 lbs | Mar 17, 1999 (25) | Missouri |
| Elliot Ashbeck SD | RP | 6' 3" / 220 lbs | Nov 16, 1993 (30) | Bradley |
| Aaron Ashby MIL | SP | 6' 1" / 188 lbs | May 24, 1998 (25) | Crowder JC (MO) |
| Braxton Ashcraft PIT | SP | 6' 5" / 195 lbs | Oct 5, 1999 (24) | None |
| Graham Ashcraft CIN | SP | 6' 2" / 248 lbs | Feb 11, 1998 (26) | Alabama-Birmingham |
| Alec Asher | SP | 6' 4" / 240 lbs | Oct 4, 1991 (32) | Polk State CC |
| Zach Ashford | RF | 5' 10" / 175 lbs | Feb 9, 2022 (2) | Fresno State |
| Albertson Asigen CHW | LF | 5' 10" / 175 lbs | Aug 27, 2001 (22) | None |
| Keyshawn Askew TB | SP | 6' 4" / 190 lbs | Jan 5, 2000 (24) | Clemson |
| Javier Assad CHC | SP | 6' 1" / 200 lbs | Jul 30, 1997 (26) | None |
| Willians Astudillo | 1B | 5' 9" / 225 lbs | Oct 14, 1991 (32) | None |
| Wilfred Astudillo | C | 5' 11" / 209 lbs | Mar 14, 2000 (24) | None |
| Jose Astudillo SF | SS | 5' 10" / 150 lbs | Feb 27, 2004 (20) | None |
| Carlos Asuaje | 2B | 5' 9" / 158 lbs | Nov 2, 1991 (32) | Nova Southeastern (FL) |
| Javier Atencio NYM | SP | 6' 0" / 160 lbs | Nov 26, 2001 (22) | None |
| Ryan Atkinson | RP | 6' 3" / 218 lbs | May 10, 1993 (30) | Cincinnati |
| Luis Atocha STL | C | 6' 0" / 180 lbs | Dec 14, 2004 (19) | None |
| Andy Atwood | 2B | 6' 1" / 195 lbs | Nov 15, 1996 (27) | Texas-Rio Grande Valley |
| Mason Auer TB | RF | 6' 1" / 210 lbs | Mar 1, 2001 (23) | San Jancito JC (TX) |
| Brett Auerbach SF | C | 5' 9" / 185 lbs | Aug 27, 1998 (25) | Alabama |
| Phillippe Aumont | RP | 6' 7" / 240 lbs | Jan 7, 1989 (35) | None |
| Brad Ausmus | C | - / - | Apr 14, 1969 (55) | Dartmouth |
| Tyler Austin | 1B | 6' 1" / 220 lbs | Sep 6, 1991 (32) | None |
| Cade Austin NYY | RP | 6' 3" / 230 lbs | Sep 28, 2001 (22) | South Carolina |
| Kelly Austin HOU | P | 6' 0" / 200 lbs | Dec 17, 2000 (23) | UCLA |
| Zack Austin ATL | 1B | 6' 2" / 205 lbs | Jul 17, 2001 (22) | Central Florida |
| Morris Austin MIL | RP | 6' 2" / 215 lbs | Mar 27, 2000 (24) | Houston Christian |
| Drew Avans LAD | CF | 5' 9" / 195 lbs | Jun 13, 1996 (27) | Southeastern Louisiana |
| Corey Avant OAK | SP | 6' 4" / 225 lbs | Nov 6, 2001 (22) | Wingate |
| Abiatal Avelino | SS | 5' 11" / 195 lbs | Feb 14, 1995 (29) | None |
| Ender Avendano LAD | SS | 5' 8" / 145 lbs | Mar 7, 2002 (22) | None |
| Christian Avendano SF | CF | 6' 0" / 168 lbs | Sep 4, 2003 (20) | None |
| Alex Avila | C | 5' 11" / 210 lbs | Jan 29, 1987 (37) | Alabama |
| Pedro Avila CLE | RP | 5' 11" / 210 lbs | Jan 14, 1997 (27) | None |
| Carlos Avila LAD | C | - / - | Dec 4, 2003 (20) | None |
| Nick Avila SF | RP | 6' 4" / 195 lbs | Jul 25, 1997 (26) | Long Beach State |
| Luis Avila PHI | RP | 6' 1" / 170 lbs | May 26, 2003 (20) | None |
| Kliubert Avila PHI | C | 5' 10" / 170 lbs | May 19, 2003 (20) | None |
| Luinder Avila KC | P | 6' 3" / 195 lbs | Aug 21, 2001 (22) | None |
| Luis Avilán | RP | 6' 2" / 220 lbs | Jul 19, 1989 (34) | None |
| Mike Aviles | SS | 5' 10" / 205 lbs | Mar 13, 1981 (43) | Concordia (NY) |
| Luis Aviles Jr. | SS | 6' 1" / 170 lbs | Mar 16, 1995 (29) | None |
| Jace Avina NYY | CF | 5' 11" / 180 lbs | Jun 6, 2003 (20) | None |
| David Avitia CHC | C | 5' 10" / 205 lbs | Sep 20, 1998 (25) | Grand Canyon |
| John Axford | RP | 6' 5" / 234 lbs | Apr 1, 1983 (41) | Canisius |
| Cesar Ayala TOR | SP | 6' 2" / 180 lbs | Feb 17, 2003 (21) | None |
| Yelserth Ayala CLE | 2B | 5' 8" / 140 lbs | Jun 5, 2006 (17) | None |
| Yoan Aybar | RP | 6' 3" / 165 lbs | Jul 3, 1997 (26) | None |
| Ronis Aybar | LF | 6' 0" / 180 lbs | Jan 13, 2000 (24) | None |
| Junior Aybar BAL | SS | 6' 0" / 145 lbs | Jul 14, 2006 (17) | None |
| Cole Ayers NYY | RP | 6' 3" / 185 lbs | Aug 17, 1999 (24) | State College of Florida Manatee-Sarasota |
| Karim Ayubi BOS | LF | 6' 2" / 180 lbs | Dec 8, 2003 (20) | None |
| José Azocar SD | RF | 5' 11" / 181 lbs | May 11, 1996 (27) | None |
| Enddy Azocar BOS | OF | 6' 2" / 168 lbs | Feb 24, 2007 (17) | None |
| Anderson Azor | RP | 6' 0" / 162 lbs | Oct 9, 2003 (20) | None |
| Alexeis Azuaje | 2B | 5' 10" / 155 lbs | Apr 24, 2002 (22) | None |
