Annette Ziegler is a judge of the Wisconsin Supreme Court. She assumed office on August 1, 2007. Her current term ends on July 31, 2027. Ziegler was elected by her peers to succeed Patience Roggensack as chief justice of the court. Her term as chief began on May 1, 2021, and ended April 30, 2023. She was re-elected by her peers for an additional term as chief justice, ending on April 30, 2025. Ziegler first became a member of the Wisconsin Supreme Court through a nonpartisan election. She was first elected to the court in 2007 to the seat vacated by Jon P. Wilson. Ziegler became chief justice on May 1, 2021, succeeding Patience Roggensack.