ACOSS
| Acronym | Definition |
|---|---|
| ACOSS | Agence Centrale des Organismes de Sécurité Sociale |
| ACOSS | Australian Council for Social Services |
| ACOSS | Action Coalition of Strikers and Supporters (Detroit, MI) |
| ACOSS | Alabama Course of Study: Science (Alabama Department of Education) |
| ACOSS | Active Control of Space Structures |