OTB
OTB stands for:
- Bremerhaven offshore terminal
- Oldenburg Gymnastics Federation
- Oleftalbahn , railway line in North Rhine-Westphalia
- Only The Brave , holding of Renzo Rosso's fashion companies
- Osnabrück Gymnastics Association
- Overberg Toetsbaan , military test site in South Africa, see Overberg Test Range
- One Touch Backup , quick access function for mobile hard disk adapters
otb stands for:
- Old Tibetan (ISO-639-3 code), early form of the Tibetan language (7th-11th centuries)
