Daniel A. Farber (born July 16, 1950) is an American lawyer, law professor, author, and historian.

He graduated summa cum laude from the College of Law, where he was class valedictorian.

After graduating from law school, Farber clerked for Judge Philip Willis Tone on the United States Court of Appeals for the Seventh Circuit and Justice John Paul Stevens on the United States Supreme Court.

After a brief period in private practice, Farber joined the University of Illinois faculty in 1978.

[1] Farber is a regular contributor to the Legal Planet blog, which analyzes developments in environmental law and policy.