Pentz is a surname. Notable people with the surname include:
Amos Pentz (1849-1922), Canadian shipbuilder Gene Pentz (born 1953), American baseball player Ivan Pentz (born 1957), South African rower Manfred Pentz (born 1980), German politician Mike Pentz (1924-1995), South African physicist Patrick Pentz (born 1997), Austrian goalkeeper Thomas Pentz (born 1978), American DJ and music producer