In the Chicago mayoral election of 1893, Democrat Carter Harrison Sr. won election, returning him the mayor's office for a (then-record) fifth non-consecutive term as mayor of Chicago. Harrison won a majority of the vote, defeating the Republican nominee, businessman Samuel W. Allerton, by a ten point margin. He also defeated two third-party candidates: United Citizens nominee DeWitt Clinton Cregier and Socialist Labor Party nominee Henry Ehrenpreis, neither of whom received strong support.

Carter Henry Harrison Sr. was an American politician who served as mayor of Chicago, Illinois, from 1879 until 1887 and from 1893 until his assassination. He previously served two terms in the United States House of Representatives. Harrison was the first cousin twice removed of President William Henry Harrison, whose grandson, Benjamin Harrison, had also been president until just months prior to the assassination. He was also the father of Carter Harrison Jr., who would follow in his father's footsteps, and would serve five terms as the mayor of Chicago himself.