The 1904 Missouri State Auditor election was held on 8 November 1904 in order to elect the state auditor of Missouri. Republican nominee William Werner Wilder defeated Democratic nominee and incumbent state auditor Albert Otis Allen, Socialist nominee William M. Brandt, Prohibition nominee George H. Gibson, People's nominee William H. Mills and Socialist Labor nominee Joseph W. Molineux.
General election.
On election day, 8 November 1904, Republican nominee William Werner Wilder won the election by a margin of 21,964 votes against his foremost opponent Democratic nominee Albert Otis Allen, thereby gaining Republican control over the office of state auditor. Wilder was sworn in as the 21st state auditor of Missouri on 9 January 1905.
Results.
! scope="col" colspan="2" style="width: 15em" |Party
! scope="col" style="width: 17em" |Candidate
! scope="col" style="width: 5em" |Votes
! scope="col" style="width: 3.5em" |%
! colspan="3" style="text-align:right;" | Total votes
References.
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