Big Bend is a town in Rusk County, Wisconsin, United States.

The unincorporated community of Island Lake is located in the town.

There were 431 housing units at an average density of 13.2 per square mile (5.1/km2).

The racial makeup of the town was 98.76% White, 0.25% Native American, 0.25% Asian, and 0.75% from two or more races.

27.7% of all households were made up of individuals, and 11.4% had someone living alone who was 65 years of age or older.