New Haven is a town in Dunn County, Wisconsin, in the United States.

The unincorporated community of Graytown is located partially in the town.

According to the United States Census Bureau, the town has a total area of 36.4 square miles (94.2 km2), all of it land.

There were 256 housing units at an average density of 7.0 per square mile (2.7/km2).

24.7% of all households were made up of individuals, and 12.3% had someone living alone who was 65 years of age or older.