Vasin () is a Russian male surname that is derived from Vasiliy, the male given name Vasily, and literally means "Vasya's". Its feminine counterpart is Vasina (). It may refer to:
Denys Vasin (born 1989), Ukrainian footballer Miroslav Vasin (born 1955), Serbian politician Ted Vasin (born 1966), American artist Viktor Vasin (born 1988), Russian footballer Vladimir Vasin (born 1947), Soviet diver