Bill Otto

Bill or William Otto may refer to:


 * Bill Otto (entrepreneur), founder of Otto Laboratories and Otto Aviation Group
 * Bill Otto (Kansas politician), Republican member of the Kansas House of Representatives from 2005 to 2012
 * Bill Otto (Missouri politician) (born 1956), Democratic member of the Missouri House of Representatives from 2013 to 2017
 * William Tod Otto (1816–1905), American judge and reporter of decisions of the United States Supreme Court