Cathy Fung is an American lawyer who is serving as a judge of the United States Tax Court.

[1] From 2004 to 2006, Fung served as an attorney-advisor for Judge Robert Wherry of the United States Tax Court.

[1] On May 9, 2024, President Joe Biden nominated Fung to serve as a judge of the United States Tax Court.

[2] She was nominated to the seat vacated by Judge Joseph H. Gale, who assumed senior status on August 26, 2023.

[5] On November 13, 2024, the United States Senate invoked cloture on her nomination by a 58–37 vote.