Kozlovsky (masculine) or Kozlovskaya (feminine) is an East Slavic surname. Notable people with the surname include:
Alexander Kozlovsky (disambiguation), several people Alexei Fedorovich Kozlovsky (1905–1977), Russian composer (1932–1996), Ukrainian foreman (1707–1776), Russian statesman (1929–2013), Ukrainian metallurgist Danila Kozlovsky (born 1985), Russian actor Dmitrii Kozlovskii (born 1999), Russian pair skater Eugene Kozlovsky (1946–2023), Russian writer, journalist Ivan Kozlovsky (1900–1993), Soviet singer (tenor) Marina Kozlovskaya (1925–2019), Soviet Russian painter Mikhail Kozlovsky (1753–1802), Russian sculptor Ondřej Kozlovský (born 1982), Czech bobsledder Osip Kozlovsky (1757–1831), Russian composer Pavel Pavlovich Kozlovsky (born 1942), Soviet and Belarusian general and politician Pyotr Kozlovsky (1783–1840), Russian diplomat and man of letters Valentina Kozlovskaya (1938–2025), Russian chess player William P. Kozlovsky, American rear admiral
See also Kozłowski, a Polish last name
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