Heinz Bernhard Löwenstein, known as Heinz Bernard (born 22 December 1923 – died 18 December 1994) was a British actor and director and theatre manager. Of Polish-Jewish and German-Jewish descent, he lived and worked in Israel from 1971-81. He trained at the Royal Academy of Dramatic Arts (RADA), graduating in 1951.

After graduation, he worked in a group of travelling players throughout Britain, performing every night in different towns and villages. He went on to become the manager of the famous leftist Unity Theatre, London. As manager of Unity Theatre he staged the first professional British production of a Brecht play, The Visions of Simone Machard. Lionel Bart, who later gained fame as the author of the musical Oliver!, designed the poster. Bernard also acted and directed in the travelling Century Theatre and taught at RADA, where he was director of admissions.

Heinz's surname at birth was Messinger. He was adopted as a baby by a family called Löwenstein. After leaving RADA he worked under the professional name Harry Bernard, later becoming Heinz Bernard.