Robert Marion La Follette Sr., was an American lawyer and politician. He represented Wisconsin in both chambers of Congress and served as the governor of Wisconsin from 1901 to 1906. A Republican for most of his life, he ran for president of the United States as the nominee of his own Progressive Party in the 1924 presidential election. Historian John D. Buenker describes La Follette as "the most celebrated figure in Wisconsin history".

The governor of Wisconsin is the head of government of Wisconsin and the commander-in-chief of the state's army and air forces. The governor has a duty to enforce state laws, and the power to either approve or veto bills passed by the Wisconsin Legislature, to convene the legislature, and to grant pardons, except in cases of treason and impeachment. The position was first filled by Nelson Dewey on June 7, 1848, the year Wisconsin became a state. Prior to statehood, there were four governors of Wisconsin Territory.