| Name | Gender | Pronounced | Usage | Popularity |
|---|---|---|---|---|
| Nicolas | nee-ko-LAH | French | ||
| Nicolau | nee-koo-LOW (Portuguese) | Portuguese, Galician, Catalan | ||
| Nicolaus | NEE-ko-lows (German) | German, Ancient Greek (Latinized) | ||
| Nicole | nee-KOL (French), ni-KOL (English) | French, English, Dutch, German | ||
| Nicolet | - | Dutch | ||
| Nicolette | - | French | ||
| Nicoline | - | French, Dutch | ||
| Nicomedes | - | Ancient Greek (Latinized) | ||
| Nicostratus | - | Ancient Greek (Latinized) | ||
| Nida | - | Arabic, Urdu | ||
| Niek | NEEK | Dutch | ||
| Niels (2) | NEELS | Dutch | ||
| Nigellus | - | English (Archaic) | ||
| NikŠA | - | Croatian | ||
| Nika (2) | - | Slovene, Croatian |