| 1. | ATA | From Turkish ata - ''father''and the corresponding surname is Atayan. |
| 2. | ATABEG (Atabek) | From Turkish atabeg consisting of ata - ''father'' and beg - ''prince''. Atabeg is also a military title which means ''commander-in-chief''. Nowadays this name can still be met as well as the… 0.2 KB |
| 3. | ATANAS | From Athanasios (Greek), Athanasius(Latin), Afanasiy(Russian)which means ''immortal''.It consists of ''a'' - negative prefix and thanatos - ''death''.The corresponding surname is Atanasyan.The… 0.2 KB |
| 4. | ATOM (Atovm) | Is in use since ancient ages. We have Atomyan and Atovmyan surnames. |
| 5. | ATRNERSEH | From Parthian word atur (atr), which means ''fire'', ''flame'' and the name Nerseh. It is in use since Heathen Ages, now almost forgotten. |
