Belousov

Belousov (or Beloussov), feminine: Belousova is a Russian-Polish patronymic surname formed from the nickname Belous (which also became a surname) derived from Belye Usy (Белые Усы), (Białe wąsy) "White Moustache".

Notable people with this surname include:
 * Alexandr Belousov (born 1998), Moldovan footballer
 * Andrey Belousov (born 1959), Russian politician and economist
 * Anna Belousova (born 1996), female Russian swimmer
 * Boris Belousov (born 1934, Soviet politician
 * Boris Belousov (cosmonaut) (1930–1998), Soviet cosmonaut
 * Boris Pavlovich Belousov (1893–1970), Soviet chemist
 * Denys Byelousov (born 1996), Ukrainian footballer
 * Dmitri Belousov (born 1980), Russian footballer
 * Georgi Belousov (born 1990), Russian ice hockey player
 * Igor Belousov (1928–2005), Soviet politician
 * Ilya Belousov (born 1978), Russian football midfielder
 * Irina Belousova (born 1954), Ukrainian politician
 * Ludmila Belousova (1935–2017), Russian figure skater
 * Mikhail Belousov (born 1953), Russian politician
 * Piotr Belousov (1912–1989), Soviet, Russian painter, graphic artist, and art teacher
 * Sergey Belousov (born 1990), Russian association footballer
 * Sonya Belousova (born 1990), Russian-born composer, pianist and recording artist
 * Vadim Belousov (born 1960), Russian politician
 * Valentin Danilovich Belousov (1925–1988), Moldavian Soviet mathematician
 * Valeriy Belousov (born 1970), decathlete from Russia
 * Valery Belousov (1948–2015), Russian professional ice hockey coach and player
 * Vladimir Belousov (1907–1990), Soviet geologist
 * Vladimir Belousov (ski jumper) (born 1946), Soviet ski jumper
 * Yaroslav Belousov (born 1991), Russian political prisoner
 * Yevgeny Vladimirovich Belousov (born 1962), Soviet luger
 * Yuri Leonidovich Belousov (1945–2000), Soviet and Russian researcher and engineer
 * Zhenya Belousov (1964–1997), Soviet and Russian pop singer