Fretter is a surname. Notable people with the surname include:
Colton Fretter (born 1982), Canadian professional ice hockey forward Vera Fretter (1905–1992), British conchologist, and one of the authors (with Alastair Graham) of British Prosobranch Molluscs
See also Fret (disambiguation) Fretter, an electronics and major appliance retailer based out of Detroit, Michigan, founded in the 1950s by Oliver "Ollie" Fretter Otto Fretter-Pico (1893–1966), highly decorated major-general in the Wehrmacht during World War II Maximilian Fretter-Pico (1892–1984), German general during World War II