Names Like O — Find Similar Baby Names
O is a 1-letter Irish boys' name meaning “Descendent Of. Irish Surnames Formed By Prefacing O'.”. This page collects 49 such names across 3 kinds of similarity — including Irish cousins like Abban and Abiageal, and names sharing the “descendent” concept like Senghor and Zere.
For the full O profile (meaning, popularity history, famous people, state-by-state stats), see the main O page.
More Irish Names
24 baby names that share O’s Irish origin.
| Name | Meaning | Gender |
|---|---|---|
| Abban | Abbot ABRACHAM, BRAM | Male |
| Abiageal | Irish Form Of Abigail (Brings Joy) ADARA, ATHDARA | Female |
| Abracham | Irish Form Of Abraham | Male |
| Adare | From The Ford Of The Oak Tree | Male |
| Addergoole | From Between Two Fords | Male |
| Adeen | Little Fire | Female |
| Aderrig | From The Red Ford | Male |
| Aeary | Scholar | Male |
| Afric | Pleasant | Female |
| Africa | Pleasant | Female |
| Agata | Kind | Female |
| Agate | Kind | Female |
| Aghaderg | From The Red Ford | Male |
| Aghadreena | From The Field Of The Sloe Bushes | Female |
| Aghamora | From The Great Field | Female |
| Aghamore | From The Great Field | Male |
| Aghaveagh | From The Field Of The Old Tree | Female |
| Aghavilla | From The Field Of The Old Tree | Female |
| Aghna | Irish Form Of Agnes | Female |
| Aghy | Friend Of Horses | Male |
| Aguistin | Majestic | Male |
| Ahana | From The Little Ford | Female |
| Ahane | From The Little Ford | Male |
| Aideen | Little Fire | Female |
Today's Most-Popular Boys' Names — Compare to O
Top 12 boys' names by US births in the most recent decade (2014–2024 SSA records). Each link opens a side-by-side comparison with O.