Akeela
Akeem
Akeisha
Aker (Egyptian mythology: the lion who guards the gates of dawn)
Akhen
Akhushtal (Maya mythology: goddess of childbirth)
Aki
Akim
Akira
Akita (Japanese breed of dog)
Aktil (after the mouse in "Aktil's Big Swim" children's book by Inga Moore)
Aku
Akula
Akuna
Al
Al Bundy
Al Capone
Al Pacino (after the actor)
Alabama
Alabaster
Aladar
Aladara
Aladdin
Alakazam!
Alan
Alani
Alanna
Alaska
Alastair
Albatros