New York State Route 690 (NY 690) is a freeway in Central New York in the United States. NY 690's southern terminus is at an interchange with the New York State Thruway and I-690 in Van Buren. The northern terminus is at an intersection with NY 48 and NY 631 in Lysander. NY 690 serves the northwest suburbs of Syracuse and Onondaga County. It also provides a link to routes that run into the populated areas of Oswego County, because its northern terminus is just a few miles shy of the county line.

Lysander is a town in Onondaga County, New York, United States. As of the 2020 Census, the population was 23,074. The town was named after Lysander, a Spartan military leader, by a clerk interested in the classics. Lying to the northwest of Syracuse, much of the town is suburban in character.