| James Collinsworth | |
| Office: | 1st Chief Justice of Texas |
| Term Start: | December 16, 1836 |
| Term End: | July 11, 1838 |
| Predecessor: | Inaugural holder |
| Successor: | John Birdsall |
| Office1: | Republic of Texas Senator from Brazoria District |
| Term Start1: | November 30, 1836 |
| Term End1: | December 16, 1836 |
| Predecessor1: | Inaugural holder |
| Successor1: | William Green Hill |
| Office2: | Interim Secretary of State of Texas |
| Term Start2: | April 29, 1836 |
| Term End2: | May 23, 1836 |
| Predecessor2: | Samuel Price Carson |
| Successor2: | William Houston Jack |
| Office3: | Delegate to the Convention of 1836 from Brazoria District |
| Term Start3: | February 1, 1836 |
| Term End3: | March 17, 1836 |
| Office4: | United States Attorney for the Western District of Tennessee |
| Term Start4: | 1829 |
| Term End4: | 1835 |
| Predecessor4: | Thomas H. Fletcher |
| Successor4: | William T. Brown |
| Birth Date: | 1802 |
| Birth Place: | Davidson County, Tennessee, U.S. |
| Death Date: | July 11, 1838 |
| Death Place: | Galveston, Texas |
| Resting Place: | Founders Memorial Cemetery |
James Thompson Collinsworth (1802 – July 11, 1838) was an American-born Texan lawyer and political figure in early history of the Republic of Texas.
Collinsworth was born in 1802 Davidson County, Tennessee. His father, Edward Collinsworth, served in the American Revolutionary War and the War of 1812.[1] His sister, Susan, married Mark R. Cockrill, a large planter known as the "Wool King of the World".[2]
Collinsworth served as the United States Attorney for the Western District of Tennessee.
Collinsworth served as a signer of the Texas Declaration of Independence, the first chief justice of the Supreme Court of the Republic of Texas,[3] and an interim Secretary of State of Texas.[4]
Collinsworth was candidate during the 1838 Republic of Texas presidential election against Mirabeau B. Lamar.
Collinsworth drowned after falling from a steamboat into Galveston Bay.[5] His body was found on Bolivar Peninsula and taken by boat upstream along Buffalo Bayou to Houston, where he lay in state at the Texas Capitol. He was interred at Founders Memorial Cemetery in Houston.
Collingsworth County, Texas and Collingsworth Street in Houston, were both posthumously named in his honor, even though both were misspelled.