| Acronym | Definition |
|---|
| BSIS➣Bureau of Security and Investigative Services (California, USA) |
| BSIS➣Bachelor of Science in Information Systems (various universities) |
| BSIS➣Big Shanty Intermediate School (Kennesaw, GA) |
| BSIS➣Bachelor of Science in Interdisciplinary Studies (various locations) |
| BSIS➣Bachelor of Science in Information Science (college degree) |
| BSIS➣Blind Spot Information System (cars) |
| BSIS➣Birth Sister (adoption) |
| BSIS➣Battlefield Strategic Information System |