Nicolai is a given name. Notable persons with that name include:

Nicolai Belokosov (born 1975), Moldovan judoka (born 1974), 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

See also

Niccolai Nicola (name) Nicolae (name) Nicolaj Nicolao Nicolas (given name) Nicolau Nicolau (surname) Nicolay (disambiguation) Nicolay (disambiguation) Nikolai (disambiguation) Nikolaj Nikolay (disambiguation)