Stettner is a surname. Notable people with the surname include:
Armando Stettner, American computer engineer and architect Dirk Stettner (born 1969), German entrepreneur and politician Louis Stettner (1922–2016), American photographer Łukasz Stettner (born 1955), Polish mathematician Patrick Stettner, American film director and writer Willy Stettner (1895–1961), German singer and actor