Baseball
A
- Aaron Hank
- Abbott Paul
- Abreu Bobby
- Acta Manny
- Adams Josh
- Agassi Andre
- Agbayani Benny
- Alderson Sandy
- Aldrin Buzz
- Alfonzo Edgardo
- Alomar Roberto
- Alomar Sandy
- Alou Felipe
- Alou Moises
- Amaral Beau
- Anderson Brian
- Anderson Craig
- Anderson Garret
- Anderson Sparky
- Ankiel Rick
- Aoki Mik
- Aoki Norichika
- Aparicio Luis
- Appier Kevin
- Archey Paul
- Armitage Barry
- Armstrong Chuck
- Arrojo Rolando
- Arroyo Bronson
- Arroyo Carlos
- Ash Gordon
- Ashby Andy
- Atkins Garrett
- Atkins Richard
- Attanasio Mark
- Aurilia Rich
- Ausmus Brad
- Autry Jackie
- Aybar Erick