Waneta Lake (previously known as "Little Lake") is a small lake in the Finger Lakes region of the state of New York in the United States. The lake straddles the border of Schuyler County and Steuben County, and is within the towns of Tyrone and Wayne. Waneta Lake is 3.5 miles long (north-to-south) and half a mile wide (east-to-west), and lies just east of the southern branch of Keuka Lake.