Thomas Morris (January 3, 1776 – December 7, 1844) was a Democratic politician from Ohio. He served in the United States Senate.

Born in Berks County, Pennsylvania, Morris enlisted as a Ranger to fight the Indians in 1793. He settled in western Ohio two years later. He began practicing law in Bethel, Ohio in 1804. On 1806-12-05, shortly after the beginning of the 1806–1807 term of the Ohio House of Representatives, he contested the election of David C. Bryan and was awarded the seat from Clermont County. During the following years, Morris regularly served in the Ohio House (1808–1809, 1810–1811, and 1820–1821 ) and the Ohio State Senate (1813–1815, 1821–1823, 1825–1829, and 1831–1833). He also served on the Ohio Supreme Court from 1809 until 1810. He was elected to the U.S. Senate in 1833, and served a single term. He did not seek re-election, instead nominated to the Vice Presidency by the Liberty Party.

Morris was the father of Isaac Newton Morris and Jonathan David Morris.

Thomas Morris (December 9, 1861 – September 17, 1928), was Lieutenant Governor of the U.S. state of Wisconsin from 1911 until 1915. He was born in Saint-Hyacinthe, Quebec, St. Arnold Parish, Quebec. Morris settled in La Crosse, Wisconsin, where, he was a barber. Thomas Morris went to law school in Madison, Wisconsin, and returned to La Crosse, where he practice law. He was elected District Attorney for La Crosse County, Wisconsin and was elected to the Wisconsin State Senate. Thomas Morris was instrumental in establishing what is now University of Wisconsin-La Crosse in 1909. In 1911, Morris was elected Lieutenant Governor of Wisconsin as a Republican serving until 1915.

Thomas Morris died in New York City of a heart attack at the age of 67.

Thomas Morris (February 26, 1771 - March 12, 1849) was a United States Representative from New York and was a son of Robert Morris, a merchant, signer of the Declaration of Independence, and later a U.S. Senator. The younger Morris was born in Philadelphia and attended school in Geneva, Switzerland (from 1781 to 1786) and the University of Leipzig, in Germany, from 1786 from 1788. He returned to Philadelphia and studied law; he was admitted to the bar and commenced practice in Canandaigua, New York. He was a member of the New York State Assembly from 1794 to 1796.

Morris was elected as a Federalist to the Seventh Congress, holding office from March 4, 1801 to March 3, 1803. He was not a candidate for renomination, and resumed the practice of law in New York City in 1803. He was appointed United States Marshal for the Southern District of New York in 1816, 1820, 1825, and 1829. In 1849, he died in New York City.

Thomas Morris (August 30, 1897 - 1945) was an American jazz cornetist. Born in New York in 1898, jazz critic Scott Yanow noted that Morris' primitive style was "an excellent example of how New York brass players sounded before the rise of Louis Armstrong." Yanow, Scott. Trumpet Kings: The Players Who Shaped the Sound of Jazz Trumpet. Page 270. Backbeat Books, 2001. Morris' many recordings include dates with Clarence Williams, Charlie Johnson, Fats Waller and many jazz and blues singers including Mamie Smith, Eva Taylor and Sippie Wallace. His most notable dates were with his band, the Seven Hot Babies, resulting in eight songs in 1923 and ten in 1926. For a time, Morris served as a porter at Grand Central Station. In the last few years of his life, Morris became associated with Father Divine's strict religious movement, changing his name to Brother Pierre. Sidney Bechet recalled an encounter with Morris in a radio interview with Wynne Paris, stating "I happened to be walking down 132nd Street near Seventh Avenue when I saw Thomas Morris, and I was tickled to death to see him. I say, 'Hello Thomas.' He said, 'Not no more. I'm St. Peter.' I said, 'You might be St. Peter to Father Divine, but you're Thomas Morris to me.'" Morris died in the 1940s. He was the uncle of pianist Marlowe Morris.