| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 41 | Alastrina | Irish | Feminine form of Alastair, meaning avenger. | F | |
| 42 | Alastriona | Irish | Feminine form of Alastair, meaning avenger. | F | |
| 43 | Alayna | Irish | Beautiful. Dear child. | F | |
| 44 | Alayne | Irish | Beautiful. Dear child. | F | |
| 45 | Alina | Irish | Beautiful. | F | |
| 46 | Alison | Irish | Honest. | F | |
| 47 | Allana | Irish | Beautiful. Dear child. | F | |
| 48 | Allene | Irish | Beautiful. | F | |
| 49 | Allison | Irish | Honest. | F | |
| 50 | Allsun | Irish | Honest. | F | |
| 51 | Allyn | Irish | Beautiful. | F | |
| 52 | Alma | Irish | All good. | F | |
| 53 | Alona | Irish | Beautiful. Dear child. | F | |
| 54 | Alonna | Irish | Beautiful. Dear child. | F | |
| 55 | Alvy | Irish | Olive. | F | |
| 56 | Alyson | Irish | Honest. | F | |
| 57 | Annabla | Irish | Irish form of Annabel: lovable. | F | |
| 58 | Anstey | Irish | A form of the Greek Anastasia, meaning ressurection. | F | |
| 59 | Anstice | Irish | A form of the Greek Anastasia, meaning ressurection. | F | |
| 60 | Aoibheann | Irish | Fair. | F | |