Jerry Francis Costello (born September 25, 1949) is an American politician and former U.S. Representative for Illinois's 12th congressional district.

Costello took office on in August 1988, after winning a special election with 51% of the vote, to fill the seat of the deceased Melvin Price.

[7] Shortly after the election of Barack Obama as President of the United States, Costello was prominently mentioned as a possible cabinet choice for Secretary of Transportation; the nomination eventually went to fellow Illinois Representative Ray LaHood.

At the end of an investigation and trial, a longtime friend of Costello's was sentenced to six years in prison for obstruction of justice.

In 1997, the Congressional Accountability Project filed an ethics complaint requesting investigation of Costello which resulted in no action.

[11] Costello was originally intended to be an elector in the 2020 election as well; however, in the official vote he was replaced by Illinois House Speaker Chris Welch.