Boys' A

Aaron
Abraham
Abram
Abraylin
Ace
Acen
Achille
Adair (boy)
Adairious
Adam
Addenius
Addison (boy)
Aden
Adeni
Adian
Adler (boy)
Adonis
Adrian (boy)
Adriatic
Adrien
Aedan
Aelaric
Aengus
Aeric
Aerren
Afton (boy)
Agustin
Aidan (boy)
Aideen (boy)
Aiden
Aiken (boy)
Ainsleigh
Aladdin
Alaric
Alasdair
Alastair
Albert
Alcaine
Aldin
Aldous
Alejandro
Alessio
Alex (boy)
Alexander
Alexavier
Alexei
Alexx
Alixandyr
Allan
Allanon
Allen
Alonzo
Alstin
Alton
Alwyn
Amadeus
Amasa
Amassa
Amaury
Ammon
Amyas
Anakin
Anatole
Anatolij
Anden
Anders
Anderson
Andrast
Andre
Andreis
Andreu
Andrew
Andriel
Andy
Angel (boy)
Angelou (boy)
Angelus
Angus
Aniston
Ansel
Anthony
Antoine-Guy
Anton
Antonin
Antonio
Antony
Anwar
Aodhan
Apel
Apollo
Apollo
Aquina
Aragon
Aramis
Arcadian
Arcas
Archer
Ari
Aries (boy)
Arlo
Armand
Armando
Arro
Arthur
Artos
Arturus
Asa
Ash
Ashedon
Asher
Ashitaka
Ashley (boy)
Ashton (boy)
Aslan
Atlan
Atom
Atreyu
Atticus
Attila
Auben
Auden
August (boy)
Augustus
Aurek
Aurelius
Aurian
Auriel
Aurrin
Austin
Aven
Averi
Avery (boy)
Avi
Avon
Avree
Aycen
Aztec