Lynne J. Boomgaarden (born 1961) is an American judge who serves as a justice of the Wyoming Supreme Court.

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.^[1]

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.^[1][2]