UHT is ultra-high-temperature processing (or ultra heat treatment), used to sterilize milk.
UHT or Uht may also refer to:
Unhextrium, chemical element 163, symbol Uht Ultra-high-temperature metamorphism in geology United Hebrew Trades, New York, US, 1880s Unterstützungshubschrauber Tiger, a variant of Eurocopter Tiger The Ukrainian Heraldry Society ()