KTKU (105.1 FM, "Taku 105") is a radio station in Juneau, Alaska.

Its studios are located alongside its sister stations at 3161 Channel Drive.

KTKU signed on in 1984 as the first commercial FM station in Juneau with a top 40 format, under the ownership of KJNO owner Roy Paschal.

Dennis Egan, the former mayor of Juneau and Juneau's current state senator, was the station's first general manager, while Rick Rydell served as the morning show host.

This article about a radio station in Alaska is a stub.