Otto Seifert
Otto Seifert is the name of the following people:
- Otto Seifert (physician) (1853–1933), German physician and university professor
- Otto Seifert (violin maker) (1866 – after 1933), German violin maker
- Otto Seifert (taxidermist) (1888–1959), German taxidermist
- Otto Karl Seifert (1902–1971), Swiss diplomat
