| Name | Meaning | Origin |
|---|
| Abban | Abbot. | Irish Baby Names |
| Abiageal | Brings joy. | Irish Baby Names |
| Abracham | | Irish Baby Names |
| Achaius | Horseman. | Irish Baby Names, Scottish Baby Names |
| Adamnan | Little Adam. | Anglo-Saxon Baby Names, Hebrew Baby Names, Irish Baby Names |
| Adan | Little fire. | Irish Baby Names |
| Adara | From the ford at the oak tree. | Arabic Baby Names, Greek Baby Names, Hebrew Baby Names, Irish Baby Names, Muslim Baby Names, Welsh Baby Names |
| Adare | From the ford of the oak tree. | Irish Baby Names |
| Addergoole | From between two fords. | Irish Baby Names |
| Adeen | Little fire. | Irish Baby Names |
| Aderrig | From the red ford. | Irish Baby Names |
| Adhamh | Of the earth. | Gaelic Baby Names, Hebrew Baby Names, Irish Baby Names, Scottish Baby Names |
| Adhamhnan | Little Adam. | Irish Baby Names |
| Aeary | Scholar. | Irish Baby Names |
| Aedus | Fire. | Irish Baby Names |
| Aeneas | Praise. | Biblical Baby Names, Greek Baby Names, Irish Baby Names, Latin Baby Names, Shakespearean Baby Names |
| Aengus | One vigor. | Celtic Baby Names, Irish Baby Names, Scottish Baby Names |
| Afric | pleasant. | Celtic Baby Names, Irish Baby Names |
| Africa | pleasant. | Celtic Baby Names, Gaelic Baby Names, Irish Baby Names |
| Agata | Kind. | Greek Baby Names, Irish Baby Names, Italian Baby Names, Swedish Baby Names |