An election for Mayor of Milwaukee was held on April 2, 1912. Incumbent mayor Emil Seidel was defeated for re-election by Democratic-Republican Fusion candidate Gerhard Adolph Bading, who won 58% of the vote. Bading was sworn in on April 17, 1912.
Candidates included Milwaukee mayor Emil Seidel, former Milwaukee health commissioner Gerhard Adolph Bading, and Prohibitionist Ivan D. Mishoff.