Kollontay

Kollontay (also Kollontai, Коллонтай) is a Russian language transcription of the Polish surname Kołłątaj.

It can refer to the following people:
 * Alexandra Kollontay (Kollontai) (1872–1952) — Russian Communist revolutionary, Soviet statesman and ambassador
 * Mikhail Kollontay (b. 1952) — Russian composer and pianist