OOT

OOT or Oot may refer to:


 * The Legend of Zelda: Ocarina of Time, a 1998 action-adventure game
 * Onotoa Airport, Kiribati, IATA airport code OOT
 * Oot, one of the homogeneous groups divided from Zangskari language
 * Oxidative Onset Temperature/Time, an approach to differential scanning calorimetry for polymers