Otto is a town in Cattaraugus County, New York, United States.

Otto returned territory to Perrysburg in 1823 and ceded land to Ashford in 1835.

In 1854, the eastern half of the town was spun off and renamed East Otto.

[4] The north town line is formed by Cattaraugus Creek and is the border of Erie County, and the west town line is formed by the South Branch of Cattaraugus Creek.

Cattaraugus County Route 12 is the main road through town, which extends southwestward toward Cattaraugus and northeastward toward East Otto, while Cattaraugus County Route 11 (North Otto Road) spurs northward from the hamlet of Otto through North Otto (then becomes Route 56 as it turns west on Forty Road), and Cattaraugus County Route 13 (Maples Road) splits off east of the hamlet toward Ellicottville.

Part of the Zoar Valley is located by the north town line.