Eva Mattes (German: [ˈeː.fa ˈma.təs] ; born 14 December 1954) is a German-Austrian actress. She has appeared in four films directed by director Rainer Werner Fassbinder (The Bitter Tears of Petra von Kant, Jail Bait, Effi Briest and In a Year of 13 Moons). In A Man Like E.V.A. (1984), she played a bearded film director, based on the recently deceased Fassbinder.

She has also appeared in two films of Werner Herzog, with whom she was in a relationship. Mattes also appeared in Germany, Pale Mother, and in Enemy at the Gates as the mother of Sasha Filippov. On television, she has played Klara Blum in the police procedural series Tatort.

Mattes lives in Berlin with Austrian artist Wolfgang Georgsdorf and two children.