Otto Sander (German: [ˈɔtoː ˈzandɐ]; June 30, 1941 – September 12, 2013) was a German film, theater, and voice actor.

Sander grew up in Kassel, where he graduated in 1961 from the Friedrichgymnasium. After leaving school he spent his military service in 1961/62 with the Bundesmarine and left as reserve fenrik. Sander then studied theatre science, history of art and philosophy. In 1965 he made his acting debut at the Düsseldorfer chamber plays. After his first film work in the same year he abandoned his studies in 1967, and went to Munich to become a full-time actor.