Fomin (), or Fomina (feminine; Фомина), is a common Russian surname that is derived from the male given name Foma and literally means Foma's. It may refer to:
Masculine form Aleksandr Fomin (botanist) (1869–1935), Russian/Soviet botanist and academician Aleksandr Fomin, alias of Soviet spy Alexander Feklisov (1914–2007), known for receiving information from Julius Rosenberg and his contacts during the Cuban Missile Crisis Andriy Fomin (born 1977), Ukrainian Olympic speedskater Artyom Fomin (born 1988), Russian football player Boris Fomin (1900–1948), Russian composer of folk music Daniil Fomin (born 1997), Russian football player Denis Fomin (born 1996), Russian football defender Dmitry Fomin (born 1968), Russian Olympic volleyball player Fedor Fomin (born 1968), Russian/Norwegian computer scientist Ivan Fomin (1872–1936), a Russian/Soviet architect Margarita Fomina (born 1988), Russian curler Maxim Yurevich Fomin, real name of Vladlen Tatarsky (1982–2023), Russian-Ukrainian military blogger Mitya Fomin (born 1974), Russian singer, dancer and producer Mykola Fomin (1909–1974), Ukrainian football player Nikolai Fomin, chief engineer at the Chernobyl Nuclear Power Plant during the Chernobyl disaster Ruslan Fomin (born 1986), a Ukrainian football player Semyon Fomin (born 1989), Russian football player Sergei Fomin (1917–1975), Russian mathematician Sergey Fomin (born 1958), Russian/American mathematician Viktor Fomin (1929–2007), a Soviet football player Volodymyr Fomin (1902–1942), Ukrainian football player and coach Vyacheslav Fomin (born 1969), Russian football player Yefim Fomin (1909–1941), Soviet political commissar Yevstigney Fomin (1761–1800), Russian opera composer
Feminine form Alona Fomina (born 1989), Ukrainian tennis player Anastasia Fomina (born 1983), Russian basketball player Elena Fomina (born 1979), Russian footballer Margarita Fomina (born 1988), Russian curler Oleksandra Fomina (born 1966), Ukraininan Olympic volleyball player Tatyana Fomina (born 1954), Estonian chess player
Places Fomin (village), a village (khutor) in Rostov Oblast, Russia A.V. Fomin Botanical Garden, in Kyiv, Ukraine (named after the botanist Alexandr Fomin)