Irish names beginning with O
28 Irish names beginning with O.
- ObharnaitThe color of olive
- O'brianSurname
- O'brienSurname
- O'ConnerDesire, wise aid, hound lover
- O'ConnorDesire, wise aid, hound lover
- OdanodanOf the red earth
- OdellSurname
- OdhranPale green
- OdranPale green
- OengusOne vigor
- OhnicioHonor
- OilbheOlive
- O'keefeSurname
- OliveKind one
- OmaCommanding
- OmatThe color of olive
- OnaUnity
- OnoraHonor
- Oonaone, unity, wholeness
- OonaghUnity
- OranWhite
- OrghlaithGolden
- OrlaGolden woman
- OrlaithGolden
- OrlaitheGolden
- O'shaySurname
- O'sheaSurname
- Ossianfawn