| Name | Meaning | Gender | Origin |
|---|
| Ari | lion | Male | Hebrew |
| Aria | "lioness" | Female | Italian |
| Ariana | Silver.
| Female | Italian |
| Arianna | most holy | Female | Italian |
| Ariel | lioness of god | Female | Hebrew |
| Arielle | Lion Of God | Unisex | Hebrew |
| Arlo | The barberry (shrub). | Male | Spanish |
| Armani | Brand of men's clothing | Male | Persian |
| Arthur | Strong as a rock, noble, follower of Thor | Male | Celtic |
| Aryan | warrior, honorable | Male | Indo-Iranian |
| Asher | fortunate, lucky, blessed, happy | Male | Hebrew |
| Ashley | ash-tree | Female | English |
| Ashlyn | Roots: Ashley&Lyn | Female | English |
| Ashton | ash trees place | Male | English |
| Asia | East | Female | Place-name |
| Aspen | Aspen Tree | Female | English |
| Athena | Goddess of War | Female | Greek |
| Atticus | from Attica | Male | Latin |
| Aubrey | elf rule | Female | English |
| Audrey | Strong and noble | Female | English |
| August | majestic, venerable | Male | |
| Augustus | Majestic dignity and grandeur.
| Male | Latin |
| Aurora | "dawn" | Female | Latin |
| Austin | From Augustine - Exalted one | Male | English |
| Autumn | Season between summer and winter. | Female | |