OOT or Oot may refer to:
The Legend of Zelda: Ocarina of Time, a 1998 action-adventure game The Legend of Zelda: Ocarina of Time (2026 video game), Nintendo Switch 2 remake Onotoa Airport, Kiribati, IATA airport code OOT Object-oriented technology, a computer software development paradigm Oot, one of the homogeneous groups divided from Zangskari language Oxidative Onset Temperature/Time, an approach to differential scanning calorimetry for polymers
See also Out of Taiwan model