New York State Route 417 (NY 417) is an east–west state highway located in the Southern Tier of New York in the United States. It begins at exit 20 of the Southern Tier Expressway (Interstate 86 or I-86 and NY 17) in the city of Salamanca and ends at a junction with NY 415 in Painted Post, west of the city of Corning. At 105.25 miles (169.38 km) in length, NY 417 is the longest of the state highways that were formerly part of NY 17 before the construction of the Southern Tier Expressway.