Ernst Frick (1881–1956) was a Swiss painter.

Frick was born in Knonau, the son of a travelling salesman. Frick was a founder, who became a union member and then anarchist. He was editor of anarchist newspaper Weckruf (1904-1906). He served a year in prison (1912-1913) for his involvement in liberating a Russian anarchist from incarceration in Zurich. From 1911, he lived with Frieda Gross-Schloffer, wife of psychoanalyst Otto Gross, then from 1920, with photographer Margarethe Fellerer, whom he married in 1941. He became a painter at the urging of Artur Segal, and published essays on archaeology and the history of language.^[1]