MCSU
| Acronym | Definition |
|---|---|
| MCSU | Mizoram Chakma Students' Union (Mixoram, India) |
| MCSU | Mobile Catering Support Unit (UK Royal Air Force) |
| MCSU | Maria Curie Sklodowska University (Lublin, Republic of Poland) |
| MCSU | Micro Central Switching Unit |
| MCSU | Meetings Control and Servicing Unit (UN) |
| MCSU | Multi Channel Service Unit |
| MCSU | Molybdopterin Cofactor Sulfurase Gene (biochemistry) |
| MCSU | Mass Casualty Support Unit (various locations) |
| MCSU | Mobile Crime Scene Unit (various locations) |