Nicolai (given name)
Nicolai is a given name. Notable persons with that name include:
- Nicolai Belokosov (born 1975), Moldovan judoka
- Nicolai Borger[de], German writer, actor and director
- Nicolai Gedda (1925–2017), Swedish operatic tenor
- Nicolai Jørgensen (born 1991), Danish footballer
- Nicolai Kielstrup (born 1991), Danish singer
- Nicolai Lomov (1946–2020), Russian classical pianist
- Nicolai Tangen (born 1966), Norwegian hedge fund manager