| # | Name | Origin | Meaning | Gender | |
|---|---|---|---|---|---|
| 941 | Nolyn | Irish | Renowned; noble. | M | |
| 942 | Nulte | Irish | From Ulster. | M | |
| 943 | Nulty | Irish | From Ulster. | M | |
| 944 | O' | Irish | Descendent of. Irish surnames formed by prefacing O'. | M | |
| 945 | O'brian | Irish | Surname. | M | |
| 946 | O'brien | Irish | Surname. | M | |
| 947 | O'keefe | Irish | Surname. | M | |
| 948 | O'shay | Irish | Surname. | M | |
| 949 | O'shea | Irish | Surname. | M | |
| 950 | Odanodan | Irish | Of the red earth. | M | |
| 951 | Odell | Irish | Surname. | M | |
| 952 | Odhran | Irish | Pale green. | M | |
| 953 | Odran | Irish | Pale green. | M | |
| 954 | Oengus | Irish | One vigor. | M | |
| 955 | Oran | Irish | Pale green. | M | |
| 956 | Ossian | Irish | Fawn. | M | |
| 957 | Paddy | Irish | Diminutive of Patrick: noble. Paddy is also sometimes used as a slang term for Irishman or for a temper tantrum. | M | |
| 958 | Padraic | Irish | Patrician; noble. Form of Patrick. | M | |
| 959 | Padraig | Irish | Noble. | M | |
| 960 | Padriac | Irish | Noble. | M | |