MACSS
| Acronym | Definition |
|---|---|
| MACSS | Membre de l'Académie Canadienne des Sciences de La Santé (French: Member of the Canadian Academy of Health Sciences) |
| MACSS | McGill Anatomy and Cell Biology Students Society |
| MACSS | Missouri Automated Child Support System |
| MACSS | Mauritius Automated Clearing and Settlement System (Bank of Mauritius; est. 2000) |
| MACSS | Massachusetts Cigar Smoking Society |