Feininger is a German surname. Notable people with the surname include:
Julia Feininger (1880–1970), German-American artist and art patron, husband of Lyonel Karl Feininger (1844–1922), German-American musician Lyonel Feininger (1871–1956), German-American painter, caricaturist, and comic strip artist, son of Karl Andreas Feininger (1906–1999), French-born, American photographer, son of Lyonel T. Lux Feininger (1910–2011), German-born, American painter, son of Lyonel
See also 6653 Feininger, main-belt asteroid Museum Lyonel Feininger