Frederick Weller (born 1966) is an American actor.
Weller was born in New Orleans and is the cousin of actor Peter Weller. He married Ali Marsh on September 6, 2003.
In 1993 he was one of the main regulars in the TV series Missing Persons. He has guest starred in episodes of Law and Order, Law and Order: Special Victims Unit and Law and Order: Criminal Intent, Monk and The Young Indiana Jones Chronicles. He has also appeared in several well-received films, such as Stonewall, The Business of Strangers, The Shape of Things, and the 2000 drama/miniseries, The Beach Boys: An American Family, as Brian Wilson.