| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 161 | Apoloniusz | Greek | Manly beauty. | M | |
| 162 | Apostolos | Greek | Apostle. | M | |
| 163 | Aquilo | Greek | North wind. | M | |
| 164 | Arcas | Greek | In Greek mythology, Arcas was the son of Jupiter and Callisto and son of Zeus. | M | |
| 165 | Arcenio | Greek | Virile; masculine. St. Arsenius the Great tutored Roman emperor Theodosius' sons. Actor/television personality Arsenio Hall. | M | |
| 166 | Archelaus | Greek | ruler of the people. Archelaus was one of the sons of King Herod the Great, mentioned in the New Testament. Became popular again in the 19th century. | M | |
| 167 | Archemorus | Greek | Son of Lycurgus. | M | |
| 168 | Archimedes | Greek | To think about first. | M | |
| 169 | Ares | Greek | The Greek god of war. | M | |
| 170 | Argo | Greek | Name of Jason's ship. | M | |
| 171 | Argos | Greek | All seeing. | M | |
| 172 | Argus | Greek | Bright; all seeing. | M | |
| 173 | Ari | Greek | Diminutive of Aristotle: Superior; best of thinkers. Famous Bearers: ancient Greek philosopher Aristotle, and Greek shipping tycoon Aristotle Onassis. | M | |
| 174 | Arie | Greek | Diminutive of Aristotle: Superior; best of thinkers. Famous Bearers: ancient Greek philosopher Aristotle, and Greek shipping tycoon Aristotle Onassis. | M | |
| 175 | Arien | Greek | A Greek poet and musician. The mythological magic horse born to Poseidon and Demeter. | M | |
| 176 | Aries | Greek | The ram. | M | |
| 177 | Arion | Greek | .A Greek poet and musician. The mythological magic talking horse born to Poseidon and Demeter. | M | |
| 178 | Aristaeus | Greek | Noble; son of Apollo. | M | |
| 179 | Aristid | Greek | Son of a great man. | M | |
| 180 | Aristides | Greek | The best. | M | |