KUST may stand for:
In geography:
- The Middle Persian name for “regions,” or “sides" of Iran.
In university:
- Kohat University of Science and Technology in Kohat, Khyber Pakhtunkhwa, Pakistan
- Komar University of Science and Technology in Sulaymaniyah, Iraq
- Korea University of Science and Technology, in South Korea
- Kunming University of Science and Technology in Kunming, Yunnan Province, China
In people:
- For the Belarusian painter, see Dmitry Kustanovich.
In broadcasting:
- KUST (FM), a radio station (88.7 FM) licensed to serve Moab, Utah, United States
In biology
- Saussurea costus, also known as "kuth" or "costus", a species of thistle whose roots are a source of essential oils