The 1924 Missouri Attorney General election was held on 4 November 1924 in order to elect the attorney general of Missouri. Republican nominee Robert William Otto defeated Democratic nominee Elmer O. Jones and Socialist Labor nominee Edward G. Middlecoff.
On election day, 4 November 1924, Republican nominee Robert William Otto won the election by a margin of 42,213 votes against his foremost opponent Democratic nominee Elmer O. Jones, thereby retaining Republican control over the office of attorney general. Otto was sworn in as the 29th attorney general of Missouri on 12 January 1925.[1]