| Noor (2) | | NO:R (Dutch) | Dutch, Limburgish | |
| Noortje | | NO:R-tyə (Dutch) | Dutch, Limburgish | |
| Nora | | NAWR-ə (English), NO-rah (German) | Irish, English, Swedish, Norwegian, Danish, German, Dutch, Italian | |
| Norbert | | NAWR-bert (German, Polish), NAWR-bərt (English, Dutch) | German, English, Dutch, French, Hungarian, Polish, Ancient Germanic | |
| Olaf | | O-lahf (German, Dutch) | Norwegian, Danish, German, Dutch, Polish | |
| Olivier | | o-lee-VYE (French), O-lee-veer (Dutch) | French, Dutch | |
| Oscar | | AHS-kər (English) | English, Irish, Portuguese (Brazilian), Italian, Swedish, Norwegian, Danish, Dutch, French, Irish My | |
| Otto | | AW-to (German), AH-to (English), OT-to (Finnish) | German, Swedish, Norwegian, Danish, Dutch, English, Finnish, Ancient Germanic | |
| Pascal | | pas-KAHL (French), pahs-KAHL (Dutch) | French, German, Dutch | |
| Paul | | PAWL (English), POL (French), POWL (German) | English, French, German, Dutch, Swedish, Norwegian, Danish, Romanian, Biblical | |
| Paula | | POW-lah (German, Finnish, Spanish, Polish, Croatian), PAWL-ə (English), POW-lə (Portuguese), PAW-oo-law (Hungarian) | German, English, Finnish, Spanish, Portuguese, Catalan, Romanian, Hungarian, Polish, Dutch, Swedish, | |
| Paulien | | - | Dutch | |
| Pauwel | | POW-vəl, POW-wəl | Dutch (Archaic) | |
| Pepijn | | - | Dutch | |
| Peter | | PEE-tər (English), PE-ter (German, Slovak), PAY-tər (Dutch) | English, German, Dutch, Swedish, Norwegian, Danish, Slovene, Slovak, Biblical | |