MACSA
| Acronym | Definition |
|---|---|
| MACSA | Mexican American Community Services Agency, Inc. (San Jose, CA) |
| MACSA | Mid-Atlantic Christian Schools Association (Aston, PA) |
| MACSA | Maryland Association of Core Service Agencies (Frederick, MD) |
| MACSA | Media Access Control Source Address |
| MACSA | Seaman Apprentice, Machine Accountant Striker (Naval Rating) |