| Acronym | Definition |
|---|
| TNBB➣Taman Nasional Bali Barat (Indonesian: West Bali National Park) |
| TNBB➣Tokyo Nanshiki Baseball Association (Tokyo, Japan) |
| TNBB➣Tamil Nadu Biotechnology Board (India) |
| TNBB➣Transnational Broadband Backbone for European Telecommunications |