Zaleski (feminine Zaleska, plural Zalescy) is a Polish surname. At the beginning of the 1990s there were approximately 4322 people in Poland with this surname. Notable people with the surname include:
Anthony Florian Zaleski (1913-1997), American two-time world middleweight boxing champion
August Zaleski (1883–1972), Polish diplomat, historian, President of Poland in Exile
Bronisław Zaleski (1819 or 1820–1880), Polish writer
Jan Zaleski (1869–1932), Polish biochemist
Jerod Zaleski (born 1989), Canadian football player
Józef Bohdan Zaleski (1802–1886), Polish poet
Ladislaus Michael Zaleski (1852–1925), Polish prelate, Apostolic Delegate to the East-Indies and Latin Patriarch of Antioch, botanist
Leon Zaleski (c. 1810–1841), Polish patriotic activist
Marcin Zaleski (1796–1877), Polish painter
Michał Zaleski, Polish politician
Philip Zaleski, American writer and editor
Piotr Zaleski (1850–1916), Polish traveller, astronomer, geodesist, officer
Wacław Michał Zaleski (pseudonym Wacław from Olesko; 1799–1849), Polish poet, researcher of folklore
Wojciech Zaleski (1906-1961), Polish politician
Zbigniew Zaleski (b. 1947), Polish politician
Zygmunt Zaleski (1882–1967), Polish literature historian, poet
