Weitz is a surname with German origin, and may refer to:
- Bruce Weitz (born 1943), American actor
- Chaim "Gene Simmons" Weitz (born 1949), musician with Kiss
- Chris Weitz (born 1969), Academy Award nominated producer, writer and director
- David A. Weitz (born 1951), American physicist
- Francois Weitz (born 1981), South-African Bodyguard
- John Weitz, originally Hans Werner Weitz, born May 25 1923 in Berlin ; died October 3 2002 in New York, fashion designer, historian and novelist.
- 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