MLB Players — A
730 MLB baseball players with last names starting with A.
- Aardsma, David 2004–2015
- Aaron, Hank 1954–1976
- Aaron, Tommie 1962–1971
- Aase, Don 1977–1990
- Abad, Andy 2001–2006
- Abad, Fernando 2010–2023
- Abadie, John 1875–1875
- Abbaticchio, Ed 1897–1910
- Abbey, Bert 1892–1896
- Abbey, Charlie 1893–1897
- Abbott, Andrew 2023–
- Abbott, Cory 2021–
- Abbott, Dan 1890–1890
- Abbott, Fred 1903–1905
- Abbott, Glenn 1973–1984
- Abbott, Jeff 1997–2001
- Abbott, Jim 1989–1999
- Abbott, Kurt 1993–2001
- Abbott, Kyle 1991–1996
- Abbott, Ody 1910–1910
- Abbott, Paul 1990–2004
- Abel, Mick 2025–
- Aber, Al 1950–1957
- Abercrombie, Frank 1871–1871
- Abercrombie, Reggie 2006–2008
- Abernathie, Bill 1952–1952
- Abernathy, Brent 2001–2005
- Abernathy, Robert
- Abernathy, Ted 1942–1944
- Abernathy, Woody 1946–1947
- Aberson, Cliff 1947–1949
- Ables, Harry 1905–1911
- Abner, Philip 2025–
- Abner, Shawn 1987–1992
- Abrams, Cal 1949–1956
- Abrams, CJ 2022–
- Abrams, George 1923–1923
- Abrego, Johnny 1985–1985
- Abreu, Albert 2020–
- Abreu, Bobby 1996–2014
- Abreu, Bryan 2019–
- Abreu, Eufemio
- Abreu, Joe 1942–1942
- Abreu, Jose 2014–
- Abreu, Juan 2011–2011
- Abreu, Tony 2007–2014
- Abreu, Wilyer 2023–
- Abreu, Winston 2006–2009
- Abstein, Bill 1906–1910
- Accardo, Jeremy 2005–2012
- Acea,
- Acevedo, Domingo 2021–
- Acevedo, Jose 2001–2005
- Acevedo, Juan 1995–2003
- Aceves, Alfredo 2008–2014
- Achter, A. J. 2014–2016
- Acker, Jim 1983–1992
- Acker, Tom 1956–1959
- Ackley, Dustin 2011–2016
- Ackley, Fritz 1963–1964
- Acosta, Cy 1972–1975
- Acosta, Ed 1970–1972
- Acosta, Jose 1920–1922
- Acosta, Manny 2007–2012
- Acosta, Maximo 2025–
- Acosta, Merito 1913–1918
- Acre, Mark 1994–1997
- Acta, Manny
- Acton, Garrett 2023–2023
- Acuña, Luisangel 2024–
- Acuña, Ronald 2018–
- Adair, Bill
- Adair, Jerry 1958–1970
- Adair, Jimmy 1931–1931
- Adam, Jason 2018–
- Adames, Cristhian 2014–2019
- Adames, Willy 2018–
- Adams,
- Adams, Ace 1941–1946
- Adams, Austin 2014–2019
- Adams, Babe 1906–1926
- Adams, Bert 1910–1919
- Adams, Bob 1925–1925
- Adams, Bobby 1946–1959
- Adams, Buster 1939–1947
- Adams, Chance 2018–2020
- Adams, Dan 1914–1915
- Adams, David 2013–2013
- Adams, Dick 1947–1947
- Adams, Doc
- Adams, Doug 1969–1969
- Adams, Emery
- Adams, George 1879–1879
- Adams, Glenn 1975–1982
- Adams, Herb 1948–1950
- Adams, Jim 1890–1890
- Adams, Joe 1902–1902
- Adams, Jordyn 2023–
- Adams, Karl 1914–1915
- Adams, Lane 2014–2018
- Adams, Matt 2012–2021
- Adams, Mike 1972–1978
- Adams, Packinghouse
- Adams, Red 1946–1946
- Adams, Rick 1905–1905
- Adams, Ricky 1982–1985
- Adams, Riley 2021–
- Adams, Russ 2004–2009
- Adams, Ryan 2011–2011
- Adams, Sparky 1922–1934
- Adams, Spencer 1923–1927
- Adams, Terry 1995–2005
- Adams, Travis 2025–
- Adams, Willie 1912–1919
- Adamson, Joel 1996–1998
- Adamson, Mike 1967–1969
- Adcock, Joe 1950–1966
- Adcock, Nathan 2011–2015
- Adcock, Ty 2023–
- Addis, Bob 1950–1953
- Addison, Keenan
- Addison, Tom
- Adduci, Jim 1983–1989
- Addy, Bob 1871–1877
- Adell, Jo 2020–
- Adenhart, Nick 2008–2009
- Aderholt, Morrie 1939–1945
- Adkins, Dewey 1942–1949
- Adkins, Dick 1942–1942
- Adkins, Grady 1928–1929
- Adkins, Jon 2003–2008
- Adkins, Merle 1902–1903
- Adkins, Steve 1990–1990
- Adleman, Tim 2016–2017
- Adlesh, Dave 1963–1968
- Adon, Joan 2021–
- Adrianza, Ehire 2013–2024
- Afenir, Troy 1987–1992
- Affeldt, Jeremy 2002–2015
- Agbayani, Benny 1998–2002
- Agee, Tommie 1962–1973
- Agganis, Harry 1954–1955
- Agler, Joe 1912–1915
- Agnew, Sam 1913–1919
- Agnos, Zach 2025–
- Agosto, Juan 1981–1993
- Agrazal, Dario 2019–2019
- Aguayo, Luis 1980–1989
- Aguiar, Julian 2024–
- Aguila, Chris 2004–2008
- Aguilar, Jesus 2014–
- Aguilar, Miguel 2021–2021
- Aguilar, Ryan 2022–2022
- Aguilera, Rick 1985–2000
- Aguirre, Hank 1955–1970
- Ahearn, Bill 1880–1880
- Ahearne, Pat 1995–1995
- Ahmed, Nick 2014–
- Aikens, Willie 1977–1985
- Ainge, Danny 1979–1981
- Ainsmith, Eddie 1910–1924
- Ainsworth, Kurt 2001–2004
- Aitchison, Raleigh 1911–1915
- Aiton, George 1912–1912
- Ake, John 1884–1884
- Aker, Jack 1964–1974
- Akerfelds, Darrel 1986–1991
- Akers, Bill 1929–1932
- Akers, Jerry 1912–1912
- Akin, Keegan 2020–
- Akiyama, Shogo 2020–2021
- Alaniz, R. J. 2019–2021
- Alba, Gibson 1988–1988
- Albaladejo, Jonathan 2007–2012
- Albanese, Joe 1958–1958
- Alberro, Jose 1995–1997
- Albers, Andrew 2013–2021
- Albers, Matt 2006–2019
- Alberto, Hanser 2015–
- Alberts, Butch 1978–1978
- Alberts, Cy 1910–1910
- Alberts, Gus 1884–1891
- Albertson, Johnny
- Albies, Ozzie 2017–
- Albosta, Ed 1941–1946
- Albrecht, Ed 1949–1950
- Albright, Jack 1947–1947
- Albright, Thomas
- Albritton, Alex
- Alburquerque, Al 2011–2017
- Albury, Vic 1973–1976
- Alcala, Jorge 2019–
- Alcala, Santo 1976–1977
- Alcantara, Arismendy 2014–2017
- Alcantara, Israel 2000–2002
- Alcantara, Raul 2016–2017
- Alcantara, Sandy 2017–
- Alcantara, Sergio 2020–2022
- Alcantara, Victor 2017–2019
- Alcántara, Kevin 2024–
- Alcaraz, Luis 1967–1970
- Alcock, Scotty 1914–1914
- Aldegheri, Sam 2024–
- Alderson, Dale 1943–1944
- Aldred, Scott 1990–2000
- Aldrete, Mike 1986–1996
- Aldrich, Jay 1987–1990
- Aldridge, Cory 2001–2010
- Aldridge, Vic 1917–1928
- Aleno, Chuck 1941–1944
- Alexander, Blaze 2024–
- Alexander, Bob 1955–1957
- Alexander, Buck
- Alexander, Chuffie
- Alexander, CJ 2024–
- Alexander, Dale 1929–1933
- Alexander, Doyle 1971–1989
- Alexander, Gary 1975–1981
- Alexander, Gerald 1990–1992
- Alexander, Hugh 1937–1937
- Alexander, Jason 2022–2022
- Alexander, Koke
- Alexander, Manny 1992–2006
- Alexander, Matt 1973–1981
- Alexander, Nin 1884–1884
- Alexander, Pete 1911–1930
- Alexander, Scott 2015–
- Alexander, Spencer
- Alexander, Ted
- Alexander, Tyler 2019–
- Alexander, Walt 1912–1917
- Alexy, A. J. 2021–2022
- Alfaro, Jason 2004–2004
- Alfaro, Jorge 2016–
- Alfonseca, Antonio 1997–2007
- Alfonso, Ángel
- Alfonzo, Edgardo 1995–2006
- Alfonzo, Eliezer 2006–2011
- Alford, Anthony 2017–2022
- Alicea, Luis 1988–2002
- Allanson, Andy 1986–1995
- Allard, Brian 1979–1981
- Allard, Kolby 2018–
- Alldred, Cam 2022–2022
- Allen,
- Allen, Alex
- Allen, Austin 2019–2022
- Allen, Bernie 1962–1973
- Allen, Bob 1890–1900
- Allen, Brandon 2009–2012
- Allen, Buddy
- Allen, Chad 1999–2005
- Allen, Clifford
- Allen, Cliney
- Allen, Cody 2012–2019
- Allen, Dick 1963–1977
- Allen, Dusty 2000–2000
- Allen, Earl 1937–1937
- Allen, Ethan 1926–1938
- Allen, Frank 1912–1917
- Allen, Greg 2017–
- Allen, Half Pint
- Allen, Ham 1872–1872
- Allen, Hank 1966–1973
- Allen, Hezekiah 1884–1884
- Allen, Horace 1919–1919
- Allen, Hosea
- Allen, Jack 1879–1879
- Allen, Jamie 1983–1983
- Allen, John 1914–1914
- Allen, Johnny 1932–1944
- Allen, Kim 1980–1981
- Allen, Lloyd 1969–1975
- Allen, Logan 2019–
- Allen, Luke 2002–2003
- Allen, Major
- Allen, Myron 1883–1888
- Allen, Neil 1979–1989
- Allen, Newt
- Allen, Nick 1914–1920
- Allen, Pete 1893–1893
- Allen, Rod 1983–1988
- Allen, Ron 1972–1972
- Allen, Sled 1910–1910
- Allen, Todd
- Allen, Toussaint
- Allenson, Gary 1979–1985
- Allensworth, Jermaine 1996–1999
- Alley, Gene 1963–1973
- Allgeyer, Nick 2021–2021
- Allie, Gair 1954–1954
- Allietta, Bob 1975–1975
- Allison,
- Allison, Andy 1872–1872
- Allison, Art 1871–1876
- Allison, Bill 1872–1872
- Allison, Bob 1958–1970
- Allison, Dana 1991–1991
- Allison, Doug 1871–1883
- Allison, Mack 1911–1913
- Allison, Milo 1913–1917
- Allison, Moody
- Allred, Beau 1989–1991
- Almada, Mel 1933–1939
- Almanza, Armando 1999–2005
- Almanzar, Carlos 1997–2005
- Almeida, Rafael 1911–1913
- Almon, Bill 1974–1988
- Almonte, Abraham 2013–
- Almonte, Edwin 2003–2003
- Almonte, Erick 2001–2011
- Almonte, Hector 1999–2003
- Almonte, Miguel 2015–2018
- Almonte, Yency 2018–
- Almonte, Zoilo 2013–2014
- Almora, Albert 2016–2022
- Aloma, Luis 1950–1953
- Alomar, Roberto 1988–2004
- Alomar, Sandy 1964–1978
- Alonso, Pete 2019–
- Alonso, Rogelio
- Alonso, Yonder 2010–2019
- Alou, Felipe 1958–1974
- Alou, Jesus 1963–1979
- Alou, Matty 1960–1974
- Alou, Moises 1990–2008
- Alpermann, Whitey 1906–1909
- Alston, Dell 1977–1980
- Alston, Garvin 1996–1996
- Alston, Tom 1954–1957
- Alston, Walter 1936–1936
- Altamirano, Porfi 1982–1984
- Altavilla, Dan 2016–
- Alten, Ernie 1920–1920
- Altenburg, Jesse 1916–1917
- Altherr, Aaron 2014–2019
- Altizer, Dave 1906–1911
- Altman, George 1959–1967
- Altobelli, Joe 1955–1961
- Altrock, Nick 1898–1933
- Altuve, Jose 2011–
- Alu, Jake 2023–2023
- Alusik, George 1958–1964
- Alvarado, Elvis 2025–
- Alvarado, Jose 2017–
- Alvarado, Luis 1968–1977
- Alvarez, Abe 2004–2006
- Alvarez, Andrew 2025–
- Alvarez, Armando 2024–
- Alvarez, Clemente 2000–2000
- Alvarez, Dariel 2015–2016
- Alvarez, Dario 2014–2017
- Alvarez, Eddy 2020–
- Alvarez, Francisco 2022–
- Alvarez, Gabe 1998–2000
- Alvarez, Henderson 2011–2017
- Alvarez, Jose 1981–1989
- Alvarez, Juan 1999–2003
- Alvarez, Nacho 2024–
- Alvarez, Orlando 1973–1976
- Alvarez, Ossie 1958–1959
- Alvarez, Pedro 2010–2018
- Alvarez, R. J. 2014–2022
- Alvarez, Rogelio 1960–1962
- Alvarez, Tavo 1995–1996
- Alvarez, Tony 2002–2004
- Alvarez, Victor 2002–2003
- Alvarez, Wilson 1989–2005
- Alvarez, Yordan 2019–
- Alvis, Max 1962–1970
- Alvord, Billy 1885–1893
- Alyea, Brant 1965–1972
- Alzolay, Adbert 2019–
- Amador, Adael 2024–
- Amalfitano, Joey 1954–1967
- Amaral, Rich 1991–2000
- Amarista, Alexi 2011–2017
- Amaro, Ruben 1958–1969
- Amaya, Jacob 2023–
- Amaya, Miguel 2023–
- Ambler, Wayne 1937–1939
- Ambres, Chip 2005–2008
- Ambriz, Hector 2010–2014
- Amburgey, Trey 2021–2021
- Amelung, Ed 1984–1986
- Ames, Red 1903–1919
- Ames, Steve 2013–2013
- Amezaga, Alfredo 2002–2011
- Amole, Doc 1897–1898
- Amor, Vicente 1955–1957
- Amoros, Sandy 1952–1960
- Ancker, Walter 1915–1915
- Andersen, Larry 1975–1994
- Anderson,
- Anderson, Alf 1941–1946
- Anderson, Allan 1986–1991
- Anderson, Andy 1948–1949
- Anderson, Bill 1925–1925
- Anderson, Bob 1957–1963
- Anderson, Bobby
- Anderson, Brady 1988–2002
- Anderson, Brett 2009–2021
- Anderson, Brian 1993–2005
- Anderson, Bryan 2010–2015
- Anderson, Bubbles
- Anderson, Bud 1982–1983
- Anderson, C.
- Anderson, Chase 2014–
- Anderson, Cody 2015–2019
- Anderson, Craig 1961–1964
- Anderson, Dave 1889–1890
- Anderson, Drew 2006–2006
- Anderson, Dwain 1971–1974
- Anderson, Fast Ball
- Anderson, Ferrell 1946–1953
- Anderson, Fred 1909–1918
- Anderson, Garret 1994–2010
- Anderson, George 1914–1918
- Anderson, Goat 1907–1907
- Anderson, Grant 2023–
- Anderson, Hal 1932–1932
- Anderson, Harry 1957–1961
- Anderson, Ian 2020–2022
- Anderson, Jason 2003–2005
- Anderson, Jim 1978–1984
- Anderson, Jimmy 1999–2004
- Anderson, John 1894–1908
- Anderson, Josh 2007–2009
- Anderson, Justin 2018–
- Anderson, Kent 1989–1990
- Anderson, Larry 1974–1977
- Anderson, Lars 2010–2012
- Anderson, Lewis
- Anderson, Marlon 1998–2009
- Anderson, Matt 1998–2005
- Anderson, Mike 1971–1979
- Anderson, Nick 2019–
- Anderson, Orinthal
- Anderson, Red 1937–1941
- Anderson, Rick 1979–1980
- Anderson, Roland
- Anderson, Scott 1987–1995
- Anderson, Shaun 2019–
- Anderson, Sparky 1959–1959
- Anderson, Tanner 2018–2021
- Anderson, Tim 2016–
- Anderson, Tyler 2016–
- Anderson, Varney 1889–1896
- Anderson, Walter 1917–1919
- Anderson, Wingo 1910–1910
- Andino, Robert 2005–2016
- Andrade, Steve 2006–2006
- Andre, John 1955–1955
- Andreoli, John 2018–2021
- Andres, Ernie 1946–1946
- Andrew, Kim 1975–1975
- Andrews,
- Andrews, Clayton 2000–2000
- Andrews, Curley
- Andrews, Ed 1884–1891
- Andrews, Elbert 1925–1925
- Andrews, Fred 1976–1977
- Andrews, Hub 1947–1948
- Andrews, Ivy 1931–1938
- Andrews, Jabbo
- Andrews, Jim 1890–1890
- Andrews, John 1973–1973
- Andrews, Mike 1966–1973
- Andrews, Nate 1937–1946
- Andrews, Pop
- Andrews, Rob 1975–1979
- Andrews, Shane 1995–2002
- Andrews, Stan 1939–1945
- Andrews, Wally 1884–1888
- Andriese, Matt 2015–
- Andrus, Bill 1931–1937
- Andrus, Elvis 2009–2023
- Andrus, Fred 1876–1884
- Andrus, Wyman 1885–1885
- Andujar, Joaquin 1976–1988
- Andujar, Luis 1995–1998
- Andujar, Miguel 2017–
- Angelini, Norm 1972–1973
- Angle, Matt 2011–2011
- Angley, Tom 1929–1929
- Ankenman, Pat 1936–1944
- Ankiel, Rick 1999–2013
- Anna, Dean 2014–2015
- Annis, Bill 1884–1884
- Anson, Cap 1871–1897
- Anthony, Eric 1989–1997
- Anthony, Roman 2025–
- Antolick, Joe 1944–1944
- Antolin, Dustin 2016–2016
- Antone, Tejay 2020–
- Antonelli, John 1944–1945
- Antonelli, Johnny 1948–1961
- Antonelli, Matt 2008–2008
- Antonello, Bill 1953–1953
- Aoki, Nori 2012–2017
- Aparicio, Luis 1956–1973
- Apodaca, Bob 1973–1977
- Aponte, Luis 1980–1984
- Apostel, Sherten 2020–2020
- Appel, Mark 2022–2022
- Appier, Kevin 1989–2004
- Applegate, Fred 1904–1904
- Applegate, Gideon
- Applegate, Red
- Appleton, Ed 1915–1916
- Appleton, Pete 1927–1945
- Appling, Luke 1930–1950
- Aquino, Aristides 2018–2022
- Aquino, Greg 2004–2009
- Aquino, Jayson 2016–2017
- Aquino, Luis 1986–1995
- Aragon, Angel 1914–1917
- Aragon, Jack 1941–1941
- Aranda, Jonathan 2022–
- Arango, Pedro
- Arano, Victor 2017–2022
- Araujo, Elvis 2015–2016
- Araujo, Pedro 2018–2019
- Arauz, Jonathan 2020–
- Archdeacon, Maurice 1923–1925
- Archer, Chris 2012–2022
- Archer, Fred 1936–1937
- Archer, Jim 1961–1962
- Archer, Jimmy 1904–1918
- Archer, Luke
- Archie, George 1938–1946
- Arcia, Francisco 2018–2018
- Arcia, Jose 1968–1970
- Arcia, Orlando 2016–
- Arcia, Oswaldo 2013–2016
- Ardell, Dan 1961–1961
- Ardizoia, Rugger 1947–1947
- Ardner, Joe 1884–1890
- Ardoin, Danny 2000–2008
- Arellanes, Frank 1908–1910
- Arenado, Nolan 2013–
- Arencibia, J. P. 2010–2015
- Arencibia, Mario
- Arft, Hank 1948–1952
- Arias, Alberto 2007–2009
- Arias, Alex 1992–2002
- Arias, Gabriel 2022–
- Arias, George 1996–1999
- Arias, Joaquin 2006–2015
- Arias, Luarbert 2025–
- Arias, Rudy 1959–1959
- Arihara, Kohei 2021–2022
- Ariosa, Mario
- Arlett, Buzz 1931–1931
- Arlich, Don 1965–1966
- Arlin, Steve 1969–1974
- Armas, Felipe
- Armas, Marcos 1993–1993
- Armas, Tony 1976–1989
- Armbrister, Ed 1973–1977
- Armbrust, Orville 1934–1934
- Armbruster, Charlie 1905–1907
- Armbruster, Harry 1906–1906
- Armenteros, Pablo
- Armenteros, Rogelio 2019–2019
- Armour,
- Armour, Bill
- Armour, Buddy
- Armstead, Jimmie
- Armstrong, George 1946–1946
- Armstrong, Howard 1911–1911
- Armstrong, Jack 1988–1994
- Armstrong, Mike 1980–1987
- Armstrong, Mule
- Armstrong, Robert 1871–1871
- Armstrong, Shawn 2015–
- Arndt, Harry 1902–1907
- Arndt, Larry 1989–1989
- Arnold, Billy 1872–1872
- Arnold, Chris 1971–1976
- Arnold, Jamie 1999–2000
- Arnold, Paul
- Arnold, Scott 1988–1988
- Arnold, Tony 1986–1987
- Arnovich, Morrie 1936–1946
- Arnsberg, Brad 1986–1992
- Arntzen, Orie 1943–1943
- Aro, Jonathan 2015–2016
- Arocha, Rene 1993–1997
- Arozarena, Randy 2019–
- Arraez, Luis 2019–
- Arredondo, Jose 2008–2012
- Arrieta, Jake 2010–2021
- Arrighetti, Spencer 2024–
- Arrigo, Gerry 1961–1970
- Arrojo, Rolando 1998–2002
- Arroyo, Bronson 2000–2017
- Arroyo, Christian 2017–
- Arroyo, Fernando 1975–1986
- Arroyo, Luis 1955–1963
- Arroyo, Rudy 1971–1971
- Arruebarrena, Erisbel 2014–2014
- Arteaga, Humberto 2019–2021
- Artez,
- Arthur,
- Arumís, Joaquín
- Arundel, Harry 1875–1884
- Arundel, Tug 1882–1888
- Asadoor, Randy 1986–1986
- Asbell, Jim 1938–1938
- Asbjornson, Casper 1928–1932
- Asbury, Orlando
- Ascanio, Carlos
- Ascanio, Jose 2007–2011
- Asche, Cody 2013–2017
- Asencio, Jairo 2009–2013
- Asencio, Miguel 2002–2006
- Ash, Ken 1925–1930
- Ash, Rudolph
- Ashburn, Richie 1948–1962
- Ashby, Aaron 2021–
- Ashby, Alan 1973–1989
- Ashby, Andy 1991–2004
- Ashby, Earl
- Ashcraft, Braxton 2025–
- Ashcraft, Graham 2022–
- Asher, Alec 2015–2018
- Ashford, Tucker 1976–1984
- Ashley, Billy 1992–1998
- Ashley, Nevin 2015–2015
- Asmussen, Tom 1907–1907
- Aspromonte, Bob 1956–1971
- Aspromonte, Ken 1957–1963
- Assad, Javier 2022–
- Asselstine, Brian 1976–1981
- Assenmacher, Paul 1986–1999
- Astacio, Ezequiel 2005–2006
- Astacio, Pedro 1992–2006
- Astin, Barrett 2017–2017
- Astroth, Joe 1945–1956
- Astudillo, Willians 2018–2022
- Asuaje, Carlos 2016–2018
- Atchison, Scott 2004–2015
- Atchley, Justin 2001–2001
- Atherton, Charlie 1899–1899
- Atherton, Keith 1983–1989
- Atilano, Luis 2010–2010
- Atkins, Abe
- Atkins, Garrett 2003–2010
- Atkins, James 1950–1952
- Atkins, Joe
- Atkins, Mitch 2009–2011
- Atkins, Tommy 1909–1910
- Atkinson,
- Atkinson, Al 1884–1887
- Atkinson, Bill 1976–1979
- Atkinson, Ed 1873–1873
- Atkinson, Harry 1895–1895
- Atkinson, Lefty 1927–1927
- Attreau, Dick 1926–1927
- Atwell, Toby 1952–1956
- Atwood, Bill 1936–1940
- Atz, Jake 1902–1909
- Aubrey, Harry 1903–1903
- Aubrey, Michael 2008–2009
- Aucoin, Derek 1996–1996
- Aude, Rich 1993–1996
- Auerbach, Rick 1971–1981
- Augenstein, Bryan 2009–2011
- August, Don 1988–1991
- Augustine, Dave 1973–1974
- Augustine, Jerry 1975–1984
- Augustus, Clyde
- Augustus, Cornelius
- Auker, Elden 1933–1942
- Aulds, Tex 1947–1947
- Ault, Doug 1976–1980
- Aumont, Phillippe 2012–2015
- Aurilia, Rich 1995–2009
- Ausanio, Joe 1994–1995
- Ausmus, Brad 1993–2010
- Aust, Dennis 1965–1966
- Austin,
- Austin, Frank
- Austin, Henry 1873–1873
- Austin, Jeff 2001–2003
- Austin, Jim 1991–1993
- Austin, Jimmy 1909–1929
- Austin, Oscar
- Austin, Raymond
- Austin, Rick 1970–1976
- Austin, Tyler 2016–2019
- Autry, Al 1976–1976
- Autry, Chick 1907–1909
- Autry, Gene
- Autry, Martin 1924–1930
- Avans, Drew 2025–
- Avelino, Abiatal 2018–2019
- Aven, Bruce 1997–2002
- Averill, Earl 1929–1941
- Avery, Skip
- Avery, Steve 1990–2003
- Avery, Xavier 2012–2012
- Avila, Alex 2009–2021
- Avila, Bobby 1949–1959
- Avila, Luinder 2025–
- Avila, Nick 2024–
- Avila, Pedro 2019–
- Avilan, Luis 2012–2021
- Aviles, Mike 2008–2017
- Aviles, Ramon 1977–1981
- Avrea, Jay 1950–1950
- Awkard, Russell
- Axelrod, Dylan 2011–2015
- Axford, John 2009–2021
- Ayala, Benny 1974–1985
- Ayala, Bobby 1992–1999
- Ayala, Luis 2003–2013
- Aybar, Erick 2006–2017
- Aybar, Manny 1997–2005
- Aybar, Willy 2005–2010
- Aydelott, Jake 1884–1886
- Ayers, Bill 1947–1947
- Ayers, Doc 1913–1921
- Aylward, Dick 1953–1953
- Ayrault, Bob 1992–1993
- Ayrault, Joe 1996–1996
- Azcue, Joe 1960–1972
- Azocar, Jose 2022–
- Azocar, Oscar 1990–1992