KNBN (channel 21) is a television station in Rapid City, South Dakota, United States, affiliated with NBC, MyNetworkTV and YTA TV.

Owned by Forum Communications Company, the station maintains studios on South Plaza Drive in Rapid City, and its transmitter is located on Cowboy Hill west of downtown.

In March 1996,[2] KEVN-TV's owner, Blackstar, announced plans to affiliate the longtime NBC outlet for the Rapid City area with the Fox network; Fox held an equity stake in Blackstar.

[8] Rapid made the winning bid, holding off four other hopefuls, notably including Sunbelt Communications Company.

On August 14, 2024, it was announced KNBN (and KWBH-LD) would be sold to Fargo, North Dakota–based Forum Communications Company, which owns former sister station KSFL-TV in Sioux Falls.