Abner Hazeltine (June 10, 1793 – December 20, 1879) was a U.S. Representative from New York. Born in Wardsboro, Vermont, Hazeltine attended the common schools. He graduated from Williams College, Williamstown, Massachusetts, in 1815. He moved to Jamestown, New York, November 2, 1815, where he taught school and was a founder of the Jamestown Academy. He studied law with Jacob Houghton and Samuel A. Brown, was admitted to the bar in 1819 and commenced practice in Chautauqua County, New York. He moved to Warren, Pennsylvania, and was the first lawyer in the county. He returned to Jamestown, New York, and resumed the practice of law in 1823. He also became editorial writer on the Jamestown Journal 1826-1829. He served as member of the New York State Assembly in 1829 and 1830.