Interstate 90 (I-90) is a part of the Interstate Highway System that runs from Seattle, Washington, to Boston, Massachusetts. In the US state of New York, I-90 extends 385.48 miles (620.37 km) from the Pennsylvania state line at Ripley to the Massachusetts state line at Canaan, and is the second-longest highway in the state after New York State Route 17 (NY 17). Although most of the route is part of the tolled New York State Thruway, two non-tolled sections exist along I-90. Within New York, I-90 has a complete set of auxiliary Interstates, which means that there are Interstates numbered I-190 through I-990 in the state, with no gaps in between. For most of its length in New York, I-90 runs parallel to the former Erie Canal route, NY 5, US Route 20 (US 20) and the CSX Transportation railroad mainline that traverses the state.

Ripley is a town on Lake Erie in the westernmost part of Chautauqua County, New York, United States. The population was 2,310 at the time of the 2020 census. The town was named after Eleazer Wheelock Ripley, a general in the War of 1812. There are no incorporated villages in the town, but there is one census-designated place: the hamlet of Ripley. The town is perhaps best known as being the western terminus of the New York State Thruway.