New York State Route 333 (NY 333) was an east–west state highway located in southeastern Steuben County, New York, in the United States. The western terminus of the route was at an intersection with County Route 11 (CR 11) and CR 24 in Risingville, a hamlet within the town of Thurston. Its eastern terminus was at a junction with NY 415 in the town of Campbell. In between, NY 333 passed through the hamlet of Thurston. The route was assigned as part of the 1930 renumbering of state highways in New York and remained unchanged until April 1, 1997, when ownership and maintenance of the route was transferred from the state of New York to Steuben County as part of a highway maintenance swap between the two levels of government. NY 333 was subsequently redesignated as County Route 333.