| Neven | | - | Croatian, Serbian, Macedonian | |
| Nevena | | - | Bulgarian, Macedonian, Croatian, Serbian | |
| Nikifor | | - | Russian, Bulgarian, Macedonian | |
| Nikodim | | - | Russian, Macedonian | |
| Nikola (1) | | - | Serbian, Croatian, Slovene, Bulgarian, Macedonian, Hungarian, Czech, Basque, Medieval Slavic | |
| Nikolche | | - | Macedonian | |
| Nikolina | | - | Bulgarian, Croatian, Serbian, Macedonian | |
| Ognen | | - | Macedonian | |
| Ognena | | - | Macedonian | |
| Olgica | | - | Macedonian, Serbian | |
| Oliver | | AHL-ə-vər (English), AW-lee-ver (German), O-lee-ver (Finnish) | English, German, Swedish, Norwegian, Danish, Finnish, Estonian, Serbian, Croatian, Macedonian, Czech | |
| Olivera | | - | Serbian, Croatian, Macedonian | |
| Paraskeva | | - | Bulgarian, Macedonian | |
| Paskal | | - | Bulgarian, Macedonian | |
| Pavel | | PAH-vyel (Russian), PAH-veel (Russian) | Russian, Czech, Bulgarian, Slovene, Macedonian | |