Chittenden Lyon (February 22, 1787 – November 23, 1842) was a United States Representative from Kentucky and the son of Matthew Lyon. He was born in Fair Haven, Vermont and attended the common schools. In 1801, he moved to Kentucky with his parents, who settled in Caldwell County, Kentucky. He engaged in mercantile pursuits in Eddyville, Kentucky and had large agricultural interests.
Lyon was a member of the Kentucky House of Representatives 1822-1824 and served in the Kentucky Senate 1827-1835. He was elected to the Twentieth Congress and reelected as a Jacksonian to the three succeeding Congresses (March 4, 1827-March 3, 1835) and was not a candidate for reelection in 1835 to the Twenty-fourth Congress. After leaving Congress, he continued his business activities until his death in 1854. Lyon County, Kentucky which was separated from Caldwell County, Kentucky in 1854, was named in his honor. He died in Eddyville, Kentucky in 1842 and was buried in Eddyville Cemetery.
- The Register of the Kentucky State Historical Society, Volume 1. Kentucky State Historical Society. 1903. p. 36.