Shirley Schlanger Abrahamson (December 17, 1933 – December 19, 2020) was the 25th chief justice of the Wisconsin Supreme Court. An American lawyer and jurist, she was appointed to the court in 1976 by Governor Patrick Lucey, becoming the first female justice to serve on Wisconsin's highest court. She became the court's first female chief justice on August 1, 1996, and served in that capacity until April 29, 2015. In all, she served on the court for 43 years (1976–2019), making her the longest-serving justice in the history of the Wisconsin Supreme Court.