OOS

OOS or Oos may refer to:

Geographical names

 * Oos, Baden-Württemberg, district in Germany
 * Oos (river), a river of Baden-Württemberg, Germany, running through Baden-Baden

Science and industry

 * Otdel Opytnogo Samolyetostroeniya (Russian) - a section for experimental aircraft construction and maker of the OOS Aviatourist
 * Object-oriented scanning, a measurement method
 * Occupational overuse syndrome, a human disorder
 * Out Of Sample, testing performed to validate results in an experiment
 * Out Of Scope, project management
 * Out of specification
 * Out of Office Soon
 * Out of Support


 * Oxford Ornithological Society

Publications and media

 * The Legend of Zelda: Oracle of Seasons, a video game
 * Out of Sync (book), a 2007 autobiography of Lance Bass
 * Origin of Symmetry, a 2001 album by Muse
 * Out of Sight, a 1998 movie with Jennifer Lopez and George Clooney
 * OxygenOS, version of the Android mobile operating system developed by Chinese smartphone manufacturer OnePlus.

Military
 * Out Of Service
 * Out Of State (Student)
 * Out Of Stock or Stockout (sales)
 * Order Of Shadow (Community)