The Chicago mayoral election of 1891 saw "Reform" candidate Hempstead Washburne narrowly win a four-way race against incumbent Democrat DeWitt Clinton Cregier, former mayor Carter Harrison Sr., and Citizens Party nominee Elmer Washburn. Also running was Socialist Labor candidate Thomas J. Morgan. Due to the four-way split in popular support, Washburne won with merely a 28.83% vote share; less than a quarter-of-a-percent margin of victory over second-place finisher Cregier and only 2.47% ahead of third-place finisher Harrison.

DeWitt Clinton Cregier was an American engineer and politician. He served as Mayor of Chicago, Illinois (1889–1891) for the Democratic Party.