Rapid Creek is a tributary of the Cheyenne River, approximately 86 mi (138 km) long, in South Dakota in the United States.

[1] The creek's name comes from the Sioux Indians of the area, for the many rapids in the stream.

It flows east, is joined by Castle Creek, past Silver City and through the Pactola Reservoir.

Emerging from the Black Hills, it flows through Rapid City, past Farmingdale, and joins the Cheyenne River approximately 13 mi (21 km) southwest of Wasta.

This article related to a river in South Dakota is a stub.