Pinn is a surname. Notable people with the surname include:
Anthony B. Pinn, American professor Petra Pinn (1881–1958), American nurse Robert Pinn (1841–1911), American Medal of Honor recipient Roy L. Pinn (1888–1950), American politician from Wisconsin Traverse Benjamin Pinn Sr. (1840–1888), American civic leader and inventor Vivian Pinn (born 1941), American physician and pathologist
See also PINN (disambiguation) Pinn Island River Pinn