Namesakes
Hall-of-Famers:
1 football
(football) Jim Otto 1980 
Notable Actors and Entertainers:
1 actor
Miranda Otto 1967-
Notable Musicians:
1 musician
John Otto 1977-
Notable Scientists and Inventors:
1 inventor
Nikolaus Otto 1832-1891
Olympic Medalists:
2 gold, 2 silver, 1 bronze
(silver) Louise Otto 1912 swimming - 4x100 m freestyle relay
(bronze) Frank Otto 1984 water polo
(gold) Kristin Otto 1988 swimming - 100 m backstroke; swimming - 100 m butterfly; swimming - 100 m freestyle; swimming - 4x100 m freestyle relay; swimming - 4x100 m medley relay; swimming - 50 m freestyle
(gold) Sylke Otto 2002; 2006 luge
(silver) Björn Otto 2012 pole vault