Theresa is a town in Dodge County, Wisconsin, United States. As of the census in 2000, the town population was 1,080. The Village of Theresa is located within the town. The unincorporated community of Theresa Station is located in the town.

According to the United States Census Bureau, the town has a total area of 35.6 square miles (92.3 km²), of which, 35.2 square miles (91.1 km²) of it is land and 0.5 square miles (1.2 km²) of it (1.35%) is water.  Wikipedia