| Acronym | Definition |
|---|
| MCJ➣Milwaukee Community Journal (Milwaukee, WI) |
| MCJ➣Menominee County Journal (Stephenson, MI) |
| MCJ➣Mass Communication and Journalism (various universities) |
| MCJ➣Mississippi Center for Justice |
| MCJ➣Mayo Clinic Jacksonville (Florida) |
| MCJ➣Malattia Di Creutzfeldt-Jakob (Italian: Creutzfeldt-Jakob Disease) |
| MCJ➣Midwest Conservative Journal |
| MCJ➣Motard Club Jouettois (French biker club) |
| MCJ➣Master Criminal Justice |
| MCJ➣Mortgage Corporation of Japan, Ltd. |
| MCJ➣Microcrystalline Cellulose, Jet Milled |
| MCJ➣Master of Laws in Comparative Jurisprudence Degree |
| MCJ➣Masonry Control Joint (wall reinforcement) |