Hilda Sooper (September 30, 1908, Pärnu – April 3, 1996, Pärnu) was an Estonian actress. Hilda Sooper worked at the Endla Theatre from 1926 to 1937, at the Tallinn Workers' Theatre from 1937 to 1944, at the Youth Theatre from 1945 to 1948 (it was liquidated in 1947 and merged with the Drama Theatre), and at Vanemuine from 1948 to 1979.