Margarete Emma Dorothea "Grete" Mosheim (8 January 1905 – 29 December 1986) was a German film, theatre, and television actress.

She began studying at Max Reinhardt's School of Drama under Berthold Held in early 1922, alongside Marlene Dietrich.

Mosheim became established under Max Reinhardt, and in 1925 he gave her the chance to substitute in the play Der sprechende Affe[2] by René Fauchois when the female lead became ill. Mosheim learned the difficult role from Albert Bassermann in just 24 hours and became a superstar almost overnight.

Until 1933, when she went to London to escape Adolf Hitler's rise to power, she was pre-eminent in the Berlin theatre scene.

After intensive study, she mastered English well enough to appear in Two Share a Dwelling by Alice Campbell in London in 1935.