| ACASA | Ackoff Center for the Advancement of the System Approach | 系统方法推进确认中心 |
| ACASA | Arkansas Coalition Against Sexual Assault | 阿肯色州反对性侵联盟 |
| ACASA | Adult Clinic Assessment Software Application | 成人临床评估软件应用 |
| ACASA | Autopistas de Cataluña y AragÓn, S. A. | Autopistas de Cataluña y AragÓn, S. A. |