KKBO (105.9 FM, "The Big Rig") is a country music radio station in Bismarck, North Dakota (licensed to Flasher).

The station broadcasts from a storefront studio on North 4th Street in Bismarck (along with sister station KXRV) competing against iHeartMedia's KQDY/94.5, KBMR/1130, and Townsquare Media's KUSB "US 103.3".

The station was launched by Connoisseur Media, LLC on December 19, 2008.

KKBO was sold to Larry Schmidt's Radio Bismarck-Mandan in September 2012.

This article about a radio station in North Dakota is a stub.