| 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) |