Toby Jay Heytens (born December 24, 1975) is an American attorney and law professor who is a United States circuit judge of the United States Court of Appeals for the Fourth Circuit.

From 2002 to 2003, he served as a law clerk for Associate Justice Ruth Bader Ginsburg of the Supreme Court of the United States.

From 2003 to 2006, Heytens worked in the Supreme Court and appellate practice group at O'Melveny & Myers in Washington, D.C. From 2007 to 2010, he served as an assistant to the solicitor general at the United States Department of Justice.

In May 2021, Heytens was named as a possible nominee for the upcoming vacancy on the U.S. Court of Appeals for the Fourth Circuit.

President Biden nominated Heytens to the seat being vacated by Judge Barbara Milano Keenan, who subsequently assumed senior status on August 31, 2021.