The surname may refer to:

Adam Kowalczyk (born 1975), American musician, brother of Ed Kowalczyk
August Kowalczyk (1921–2012), Polish actor
Bartosz Kowalczyk, Polish handball player
Bogdan Kowalczyk (born 1946), Polish handball player
Ed Kowalczyk (born 1971), American rock singer, brother of Adam Kowalczyk
Henryk Kowalczyk (born 1956), Polish politician
Ignace Kowalczyk (1913–1996), German-French footballer
Jacek Kowalczyk (born 1981), Polish footballer
Jan Kowalczyk (1941–2020), Polish show jumping champion
Jarosław Kowalczyk (born 1989), Polish cyclist
Józef Kowalczyk (born 1938), Polish clergyman, archbishop of Gniezno
Justyna Kowalczyk (born 1983), Polish cross-country skier
Kamil Kowalczyk, Polish footballer
Maciej Kowalczyk (born 1977), Polish footballer
Marcin Kowalczyk (born 1985), Polish footballer
Marek Kowalczyk, Polish footballer
Mariano Kowalczyk (born 1971), Argentine rower
Mateusz Kowalczyk (tennis) (born 1987), Polish tennis player
Mateusz Kowalczyk (footballer) (born 2004), Polish tennis player
Sebastian Kowalczyk (born 1998), Polish footballer
Sugar Kowalczyk, 1959 American crime comedy Some Like It Hot character
Tod Kowalczyk (born 1966), American college basketball coach
Ulrich Kowalczyk, German football manager
Walt Kowalczyk (1935–2018), American football player in the National Football League
Wojciech Kowalczyk (born 1972), Polish footballer
Kowalczyk brothers (1937-2017), Polish scientists who planted a bomb at the University of Opole in 1971

Notable people

See also