The 1900 Missouri State Auditor election was held on 6 November 1900 in order to elect the state auditor of Missouri. Democratic nominee Albert Otis Allen defeated Republican nominee William F. Bloebaum, Social Democratic nominee L. M. Richeson, Prohibition nominee Orange J. Hill, People's Progressive nominee Benjamin F. Allen and Socialist Labor nominee Charles Wippermann.
General election.
On election day, 6 November 1900, Democratic nominee Albert Otis Allen won the election by a margin of 38,992 votes against his foremost opponent Republican nominee William F. Bloebaum, thereby retaining Democratic control over the office of state auditor. Allen was sworn in as the 20th state auditor of Missouri on 14 January 1901.
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.
 ;templatestyles src="Reflist/styles.css" / ;