MCII
| 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 |