Dietrick (pronounced "dee-trik") is both a given name and a surname. Notable people with the name include:

Given name Dietrick Lamade (1859–1938), American publisher and founder of the newspaper Grit

Surname Blake Dietrick (born 1993), American basketball player Coby Dietrick (born 1948), American basketball player Ellen Battelle Dietrick (1847–1895), American author and suffragist

See also Dietrick Hall (building) Dietrich