| Abbreviation | Definition |
|---|---|
| ACCO | Association of Climate Change Officers |
| ACCO | Association of County Commissioners of Oklahoma |
| ACCOSCA | African Confederation of Co operative Savings and Credit Associations |
| ACCP | Association of Caribbean Commissioners of Police |
| ACCP | Association of Corporate Citizenship Professionals |
| ACCS | Association of Caribbean Copyright Societies |
| ACCS | Association of Collegiate Computing |
| ACCT | Association for Challenge Coure Tenchnology |
| ACCT | Association for Challenge Course Technology |
| ACCT | Association of Community College Trustees |
| ACCT | Association of Critical Care Transport |
| ACCU | Association of C and C Users |
| ACCU | Association of Catholic Colleges and Universities |
| ACCW | Association of California Commissions for Women |
| ACD | Association for Creatine Deficiencies |
| ACD | Association of Computer Dealers |
| ACDA | Association of Catholic Diocesan Archivists |
| ACDE | Association of Canadian Deans of Education |
| ACDE | Association of Commercial Diving Educators |
| ACDL | Association for Constitutional Democracy in Liberia |