New York State Route 9L (NY 9L) is a state highway in Warren County, New York, in the United States. The road is 18.58 miles (29.90 km) long and is a suffixed highway of U.S. Route 9 (US 9). NY 9L goes through three municipalities in Warren County: the city of Glens Falls, the town of Queensbury and the town of Lake George. It starts at an intersection with US 9 and NY 32 in Glens Falls and ends at a junction with US 9 and NY 9N in Lake George. NY 9L is a scenic route for people traveling to Lake George as the road provides many views of the lake. The route was assigned as part of the 1930 renumbering of state highways in New York along the path of an old military road originally built during the American Revolution.