Weitz is a German surname. Notable people with the surname include:
Bruce Weitz (born 1943), American actor
Chris Weitz (born 1969), Academy Award nominated producer, writer and director
David A. Weitz (born 1951), American physicist
Eduard Weitz (born 1946), Israeli Olympic weightlifter
John Weitz, (1923–2002), American fashion designer, historian and novelist
Margaret Weitz
Mark Weitz (20th century), keyboard player
Morris Weitz (1916-1981), American aesthetician
Paul J. Weitz (born 1932), American astronaut
Paul Weitz (filmmaker) (born 1965), Academy Award nominated screenwriter and director
Richard Weitz (21st century), Associate Director of the Hudson Institute’s Center for Future Security Strategies
Yosef Weitz (1890–1972), director of the Land and Afforestation Department of the Jewish National Fund