Kozłowski ([kɔzˈwɔfski]; feminine: Kozłowska, plural: Kozłowscy) is the 12th most common surname in Poland (76,657 people in 2009). Notable people with the surname include:
Aleksandra Ola Kozłowska, Polish professional ballroom dancerBrian Kozlowski, former American football tight endDavid Kozlowski, American professional tennis player and television personalityDennis Kozlowski, American businessman, former CEO of Tyco InternationalEdward Kozłowski, a Polish-American Catholic Priest, and the first Polish Bishop, in the Roman Catholic Archdiocese of Milwaukee.Glenda Kozlowski, Brazilian journalistJanusz Krzysztof Kozłowski, Polish anthropologistJoanna Kozłowska, Polish opera singerKacper Kozłowski, Polish sprinterLeon Kozlowski, Polish archaeologist and politician who served as Prime Minister of Poland from 1934 to 1935Linda Kozlowski, American actressMaciej Kozlowski, Polish actorRoman Kozłowski, Polish palaeontologistSteve Kozlowski, American psychologistVoivodeshipsKozłowski, 2nd in Warmia-Masuria (7,764)Kozłowski, 2nd in Podlaskie (5,560)