Bretz is a surname. Notable people with the surname include:
Eleonora Bretz, Luxembourgian-Greek female model
George Bretz, Canadian lacrosse player
George Bretz (photographer), American photographer
Greg Bretz (born 1990), American snowboarder
J Harlen Bretz (1882 - 1981), American geologist, first to recognize evidence of the Missoula Floods, also known as the Bretz Floods
Jim Bretz (born 1964), American baseball coach and scout
John L. Bretz (1852 - 1920), U.S. Representative from Indiana
