| Abbreviation | Definition |
|---|---|
| BESA | British Educational Suppliers Association |
| BESAR | Bureau of Educational Services and Applied Research |
| BESB | Board of Education Services for the Blind |
| BESB | Bureau of Education and Services for the Blind |
| BESC | Blanchard Education Service Center |
| BESE | Board of Elementary and Secondary Education |
| BESF | Bureau of Education and Services in French |
| BESI | Bilingual Education Summer Institute |
| BESRA | Basic Education Sector Reform Agenda |
| BESS | Baltimore Educational and Social Society |
| BESS | Buddhist Education Services for Schools |
| BEST | Baltimore Educational Scholarship Trust |
| BEST | Basic Early Skills Training |
| BEST | Behavioral and Educational Strategies for Teachers |
| BEST | Biology Education Software Taskforce |
| BEST | Bringing Education and Science Together |
| BEST | Building Early Strength Together |
| BEST | Building Educational Success Together |
| BEST | Building Effective Schools Together |
| BESU | Basic Education Student Union |