Lynne J. Boomgaarden

Lynne J. Boomgaarden (born 1961) is an American lawyer who has served the chief justice of the Wyoming Supreme Court since 2025, while concurrently serving as a justice of the court since 2018.

Education

Boomgaarden received her Bachelor of Science from the University of Wyoming in 1983 and her Juris Doctor with honor from the University of Wyoming College of Law in 1991.

Career

After graduating law school she served as a clerk for Judge Wade Brorby of the United States Court of Appeals for the Tenth Circuit. She served in private practice with Crowley Fleck, PLLP, as director of the Office of State Lands and Investments, and as an assistant professor at the University of Wyoming College of Law.

Service on Wyoming Supreme Court

In December 2017 Governor Matt Mead appointed Boomgaarden to the Wyoming Supreme Court. Boomgaarden replaced Justice William U. Hill who retired on February 17, 2018. She was sworn into office on March 12, 2018. Boomgaarden is the third woman appointed the Wyoming Supreme Court. She began her term as chief justice on May 28, 2025 after Kate M. Fox retired.