The 1912 Missouri Secretary of State election was held on 5 November 1912 in order to elect the secretary of state of Missouri. Democratic nominee and incumbent secretary of state Cornelius Roach defeated Republican nominee James J. Alford, Progressive nominee Frederick W. Niedermeyer, Socialist nominee Ernest T. Behrens, Prohibition nominee William H. Guenther and Socialist Labor nominee Clifton Holbrook.
General election.
On election day, 5 November 1912, Democratic nominee Cornelius Roach won re-election by a margin of 118,592 votes against his foremost opponent Republican nominee James J. Alford, thereby retaining Democratic control over the office of secretary of state. Roach was sworn in for his second term on 13 January 1913.
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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