New Berlin is a town in Chenango County in central New York, United States.

This followed the Iroquois League nations being forced to cede most of their territory to the United States following the defeat of their ally Great Britain.

The Mohawk and other Iroquois nations moved to Ontario, Canada, where they were granted some land by the British Crown in compensation.

In 1821 the town changed its name to "Lancaster", but returned to "New Berlin" the next year.

[3] The eastern town line, marked by the Unadilla River, is the border of Otsego County.

New York State Route 23 is an east-west highway running east from Norwich.