Kowalczyk is the fifth most common surname in Poland (98,739 people in 2009). The name comes from the word "blacksmith". Notable people. 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.
https://en.wikipedia.org/wiki/Kowalczyk