Klumpp is a German surname. Notable people with the surname include:
Christiane Klumpp (born 1976), German rhythmic gymnast Elmer Klumpp (1906–1996), American baseball player Erwin Klumpp (1921–2010), Swiss water polo player Johannes Klumpp (born 1980), German conductor Werner Klumpp (1928–2021), German politician
See also Klump (disambiguation)