KTGO (1090 AM, "AM 1090 The Flag") is a radio station licensed to Tioga, North Dakota, United States.

The station mainly serves Williston, along with oil field workers in the nearby Bakken Formation.

The station is owned by Bakken Beacon Media LLC.

KTGO is a member of the North Dakota Broadcasters Association.

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