Krupin (Russian: Крупин) is a Russian masculine surname, its feminine counterpart (in Slavic countries) is Krupina. It may refer to
- Janet Krupin (born 1987), American actress, singer, writer and producer
- Vladimir Krupin (born 1941), Russian writer
Krupin (Russian: Крупин) is a Russian masculine surname, its feminine counterpart (in Slavic countries) is Krupina. It may refer to