John Sebrie Watts (January 19, 1816 – June 11, 1876) was a Delegate from the Territory of New Mexico. Born in Boone County, Kentucky, Watts moved to Indiana, where he completed preparatory studies. He graduated from Indiana University at Bloomington, whereafter he studied law and was admitted to the bar and practiced.He served as member of the State house of representatives in 1846 and 1847.He served as associate justice of the United States court in the Territory of New Mexico from 1851 to 1854, when he resigned, after which he resumed the practice of law.