Jason Thomas Smith (born June 16, 1980) is an American businessman and politician who has been the U.S. representative for Missouri's 8th congressional district since 2013.

[4] Smith was born in St. Louis to Bill, a former minister and auto mechanic, and Mary, a former employee of Briggs & Stratton and a dog breeder.

[8] After State Representative Frank Barnitz resigned in 2005, Smith ran for Missouri's 150th House District in a special election.

[15] In 2011, Smith sponsored legislation to repeal a 2010-approved referendum, the Puppy Mill Cruelty Prevention Act, regarding oversight of dog breeding businesses requiring "daily feeding, annual veterinary care, increased living spaces and greater access to outdoor exercise".

[18] Smith ran for the vacant 8th congressional district of Missouri seat after U.S. Representative Jo Ann Emerson resigned to accept a CEO position with the National Rural Electric Cooperative Association.

Per Missouri statute, Smith was selected by the 8th District Republican Central Committee to be the party's nominee in the June special election.

The selection process—which began with 27 candidates and narrowed to 13 on nomination day—lasted six total rounds before Smith was the last one standing as the Republican nominee on February 9, 2013.

In the June special election, Smith was challenged by Democratic State Representative Steve Hodges of East Prairie, businessman Doug Enyart of the Constitution Party, and Libertarian Bill Slantz.

In 2015, Smith condemned the Supreme Court's ruling in Obergefell v. Hodges, which held that same-sex marriage bans violated the constitution.

[24] As a member of the House Ways and Means Committee, Smith had a role in writing and passing the Tax Cuts and Jobs Act.

[29] In December 2020, Smith was one of 126 Republican members of the House of Representatives to sign an amicus brief in support of Texas v. Pennsylvania, a lawsuit filed at the United States Supreme Court contesting certain voting procedures during the 2020 presidential election.

[30] The Supreme Court declined to hear the case on the basis that Texas lacked standing under Article III of the Constitution to challenge the results of an election held by another state.

"[35] On February 9, 2022, Smith announced he would seek reelection for a sixth term and pursue the chairmanship of the House Ways and Means Committee, forgoing a run for the United States Senate in the 2022 midterm elections.