KBST may refer to:
KBST (AM), a radio station (1490 AM) licensed to Big Spring, Texas, United States KBST-FM, a radio station (95.7 FM) licensed to Big Spring, Texas, United States Barun Sengupta metro station (Kolkata Metro station code KBST), in Kolkata, West Bengal, India Belfast Municipal Airport (ICAO code KBST) in Belfast, Maine, United States