Ann Walsh Bradley is an American lawyer and jurist, and the longest currently-serving justice of the Wisconsin Supreme Court. She was elected to the Supreme Court in 1995 and was re-elected in 2005 and 2015. She has announced she will not run for re-election again; her term expires July 31, 2025. She previously served ten years as a Wisconsin circuit court judge in Marathon County, Wisconsin.

The Wisconsin Supreme Court is the highest appellate court in Wisconsin. The Supreme Court has jurisdiction over original actions, appeals from lower courts, and regulation or administration of the practice of law in Wisconsin.