Semyon Viktorovich Belits-Geiman (Russian: Семён Викторович Белиц-Гейман; born 16 February 1945) is a former Soviet freestyle swimmer.

[3][8] In 1966, he won the gold medal against three of the best American freestyle swimmers in a US vs USSR competition in Moscow.

[5][13] At the 1967 Universiade in Tokyo, he won a silver medal in the 1,500 m freestyle, behind American Mike Burton.

[3] Later in his life he competed in cross-country skiing and speed skating, and became a Soviet Master of Sport and coach in both disciplines.

[3][14] He created a program to increase coordination and flexibility which was used by Australian ice dancing champions Natalie Buck and Trent Nelson-Bond in the early 2000s.