Waynetown is a town in Wayne Township, Montgomery County, in the U.S. state of Indiana.

U.S. Route 136 passes through the center of town as Washington Street, leading east-southeast 9 miles (14 km) to Crawfordsville, the county seat, and west-northwest 11 miles (18 km) to Veedersburg.

Indiana State Road 25 joins US 136 through the center of Waynetown but leads north 6 miles (10 km) to Wingate and south 4 miles (6 km) to its terminus at State Road 32.

According to the U.S. Census Bureau, Waynetown has a total area of 0.45 square miles (1.17 km2), all land.

24.8% of all households were made up of individuals, and 9.5% had someone living alone who was 65 years of age or older.

The racial makeup of the town was 99.34% White, 0.11% African American, and 0.55% from two or more races.

Waynetown has an elected five-member council which oversees many of the town functions, from grants through utilities, to park and recreation.

Each year the town of Waynetown holds a "Fish Fry" which also runs a carnival.

William Bratton (1778-1841), a member of the Lewis and Clark Expedition, settled in the Waynetown area in 1822 and "held various local county and township offices, including Justice of the Peace."