STSB
| Acronym | Definition |
|---|---|
| STSB | Secure Telephony System Bus |
| STSB | Sit Tibi Semper Bene (Latin: Be Good to You All the Time, epigraphy) |
| STSB | Student Transportation Services Branch (Department of Education; Hawaii) |
| STSB | Sindora Timber Sdn. Bhd. (Malaysia) |
| STSB | Saujana Triangle Sdn. Bhd. (Petaling Jaya, Malaysia) |
| STSB | State Traffic Support Branch (Queensland Police Service; Australia) |