KUCB is a non-commercial radio station in Unalaska, Alaska, broadcasting on 89.7 FM.

The KIAL radio and television stations were formerly owned by the municipality of Unalaska; due to municipal cutbacks they now operate as an independent non-profit organization dependent largely on individual donors.

Shortly after its sell-off, KIAL, which only broadcast at 50 watts, moved to the FM dial as KUCB, with a stronger signal.

KUCB also operates KUCB-LD, a 7-watt low-power television station on channel 8 in Dutch Harbor, Alaska.

The majority of the channel's schedule consists of a community bulletin board, although several hours of locally produced programs are also shown.