Steffen is a surname and given name, and may refer to: Albert Steffen, Swiss poet, painter, and novelist Alex Steffen, American writer and environmental futurist Anthony Steffen, Brazilian actor; acted in many spaghetti westerns Britta Steffen, German Olympic swimmer David Steffen, American businessman and politician Hans Steffen, German geographer and explorer of Patagonia Steffen Glacier in the Northern Patagonian Ice Field Jason Steffen, American physicist Jim Steffen, American professional football player Konrad Steffen, glaciologist Otto Steffen, American Olympic gymnast Waldemar Steffen, German Olympic track and field athlete Walter Steffen, American professional football player Willi Steffen, Swiss professional football player William L. Steffen, Australian climate science expert and researcher Kai Steffen, German professional football player Wikipedia