Joseph Simons is an American attorney who formerly served as chairman of the Federal Trade Commission.

[1] Simons was chief of the Federal Trade Commission's competition bureau from 2001 to 2003.

Simons is also a co-developer of “Critical Loss Analysis,” a technique for market definition that has been incorporated into the Department of Justice and FTC Merger Guidelines, as well as applied in numerous court decisions.

[1] On October 19, 2017, the White House announced that President Donald Trump would nominate Simons to be chairman of the Federal Trade Commission.

[3] Notably, the FTC under Simons filed an antitrust lawsuit against Facebook in December 2020.