Kathleen Marie Kerrigan (née Sullivan; born January 20, 1964)[1] is the chief judge of the United States Tax Court.

She served as the legislative director for United States Representative Richard E. Neal from 1991 to 1998.

From 2005 to 2012, she served as tax counsel to the majority staff of the United States Senate Committee on Small Business and Entrepreneurship and also as staff director for the Finance Subcommittee on Social Security, Pensions, and Family Policy.

Her nomination received a hearing before the United States Senate Committee on Finance on November 17, 2011, and was reported favorably on December 17, 2011.

[2][3] On February 25, 2022, she was elected to serve a two-year term as chief judge starting on June 1, 2022.