Thomas Newton Jr. (November 21, 1768 – August 5, 1847) was an American politician. He was born in Norfolk, Virginia.

Newton was a member of the Virginia House of Delegates from 1796 to 1799. He served as a Democratic-Republican in the United States House of Representatives from March 4, 1801, to March 9, 1830, losing his seat when George Loyall contested his election. Newton regained his seat at the next election and served a final term from March 4, 1831, to March 3, 1833. In the bitterly contested 1824 presidential election, Newton was the only Virginia representative to support the Adams-Clay coalition. In 1804, Newton was one of the impeachment managers appointed by the House to prosecute the case for conviction on the articles of impeachment adopted against Judge John Pickering in his impeachment trial.^[1]

Newton's son John was a Union general during the Civil War and chief engineer of the US Army in the 1880s.

• 1823; Newton was re-elected unopposed.
• 1825; Newton was re-elected unopposed.
• 1827; Newton was re-elected with 64.28% of the vote, defeating Independent George Loyall.
• 1829; Newton was re-elected with 50.35% of the vote, but the election was invalidated and Loyall was seated.
• 1831; Newton was re-elected with 51.01% of the vote, defeating Jacksonian Loyall.