The institute is part of the faculty for political and social sciences. It is named after Otto Suhr, a former mayor of Berlin (1894-1957, SPD).
The OSI arose in 1959 from the Deutsche Hochschule für Politik (German Academy for Politics) founded in 1920.
During the German student movement in the late 1960s, the Otto-Suhr-Institut was reckoned a 'leftist' and later an 'alternative' think tank. However, in present days this reputation is rather legendary than lifelike.