BTJ
| Acronym | Definition |
|---|---|
| BTJ | Brigadas Técnicas Juveniles (Spanish: Youth Technical Brigades; youth science organization; Cuba) |
| BTJ | Bibliothèque de Travail Junior (French children's literature review) |
| BTJ | Back to Jerusalem (Christian movement) |
| BTJ | Building Trades Journeyman |
| BTJ | Buried Tunnel Junction |
| BTJ | Bridgestone Tire Japan Co., Ltd. (Japan) |
| BTJ | Baltimore Technologies Japan |
| BTJ | Baltic Transport Journal |
| BTJ | Bending Towards Justice (blog) |
| BTJ | Basic Technical Japanese |
| BTJ | Brevard Technical Journal |