AVSI
| Acronym | Definition |
|---|---|
| AVSI | Association of Volunteers in International Service (est. 1972) |
| AVSI | Aerospace Vehicle Systems Institute (industry/government/university consortium) |
| AVSI | Asociación de Voluntarios Para El Servicio Internacional (Spanish: Association of Volunteers for International Service) |
| AVSI | Associazione Volontari per Il Servizio Internationale |
| AVSI | Association des Volontaires pour le Service International (French) |
| AVSI | Air Vehicle Standard Interface |