Joy Siu is an associate in the Antitrust and Competition Practice Group in the firm’s San Francisco office.

Areas of Practice

Joy’s practice focuses on litigating antitrust and competition cases, including cases based on alleged price-fixing, market allocation, boycott, monopolization and attempted monopolization, deceptive trade practices, and false advertising. She also represents corporations in government cartel investigations. Super Lawyers has recognized Joy as a Rising Star for her work.

Joy currently serves as the Co-Chair of the Student Liaison Committee of the Board of Governors of UC Hastings, where she also teaches legal research and writing. Prior to law school, Joy taught interpretation and argument, composition, and rhetoric at Carnegie Mellon University. During law school, Joy leveraged her training in persuasive writing into five best appellate brief awards as a member of the UC Hastings Moot Court Competition Team, where she also gained early courtroom experience, winning the Thomas Tang National Moot Court Competition, New York City Bar Association Regional Moot Court Competition, and David E. Snodgrass Moot Court Competition.



Northern California Rising Star, Super Lawyers, 2019-2021

Recommended Lawyer: Antitrust - Civil Litigation/Class Actions: Defense, Legal 500, 2023



J.D., UC Hastings College of the Law, 2015, cum laude

M.A., Carnegie Mellon University, 2010

B.A., University of North Texas, 2009, magna cum laude


  • Externed for the Honorable Nathanael Cousins in the Northern District of California


  • California
  • Nevada
  • U.S. District Court for the Northern, Central, Eastern, and Southern Districts of California
  • U.S. Court of Appeals for the Ninth Circuit
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