| Term | Full Form | Category |
|---|---|---|
| BSII | Bacnotan Steel Industries Inc | Others |
| BSII | Ballyfermot Social Intervention Initiative | Others |
| BSII | Baltic Sea Impact index | Others |
| BSII | Bechtel Systems and Infrastructure Inc | Others |
| BSII | Bravo Systems International, Inc. | Others |