| MMIB | Marine Management Insurance Brokers 
| Others |
| MMIB | Master of Management in International Business (academic degree; U21 Global)
| Others |
| MMIB | Material Movement & Identification Branch
| Others |
| MMIB | Mobile Mode Inge Berges
| Others |
| MMIB | Monitoring Management Information Base
| Others |
| MMIB | Mortality and Morbidity Investigation Bureau (Life Insurance Council; India)
| Others |
| MMIB | Mount Mourne International Baccalaureate
| Others |