OTBC
| Acronym | Definition |
|---|---|
| OTBC | Open Technology Business Center (Beaverton, OR, USA) |
| OTBC | Oulu Thaiboxing Club (Oulu, Finland) |
| OTBC | Ocean Towers Beach Club (Panama City Beach, FL) |
| OTBC | On the Ball City (Norwich City Football Club, UK) |
| OTBC | OkTown Bike Crew (Germany) |
| OTBC | Old Town Baptist Church (Winston-Salem, NC) |
| OTBC | Over the Bars Club (bicycle club) |
| OTBC | Oxford Terrace Baptist Church (Christchurch, New Zealand) |
| OTBC | Occasional Thursday Bridge Club |
| OTBC | Ocean Terrace Beach Club, Inc. (Palm Beach, Florida) |