Sicangu is an unincorporated community and census-designated place (CDP) in Todd County, South Dakota, United States, within the Rosebud Indian Reservation.

It was first listed as a CDP prior to the 2020 census.

[4] It is in the southern part of the county, on the east side of U.S. Route 83.

It is 1 mile (1.6 km) north of the Nebraska border and 21 miles (34 km) south of Mission.

This South Dakota state location article is a stub.