| Acronym | Definition |
|---|
| MCII➣Midnight Club 2 (game) |
| MCII➣Mcteigue & Mcclelland (jewelers; Great Barrington, MA) |
| MCII➣Motor Coach Industries International, Inc. (Canada) |
| MCII➣MCI International |
| MCII➣Mission Churches International Incorporated (Ellsworth, KS) |
| MCII➣Medium Current Ion Implant |
| MCII➣Multiple Conventional Insulin Injections |