The 1906 Wisconsin Supreme Court election was held on Tuesday, April 3, 1906, to elect a justice to the Wisconsin Supreme Court for a ten-year term. The election was the first election to fill the newly created seventh seat on the court. Attorney William H. Timlin prevailed in a four-candidate race, winning a plurality of the vote.
William H. Timlin won a plurality of the vote, which (under the election rules in place at the time) was sufficient to win election the court.
| colspan="6" style="text-align:center;background-color: #e9e9e9;"| General Election, April 1906