| Acronym | Definition |
|---|
| MJS | Miroku Jyoho Service (Japan) |
| MJS | Milwaukee Journal Sentinel |
| MJS | Madison Jazz Society (est. 1984; Madison, WI) |
| MJS | Manila Japanese School (Philippines) |
| MJS | Medical Justice Services (physician association; est. 2002; Greensboro, NC) |
| MJS | Minneapolis Japanese School (Woodbury, MN) |
| MJS | Master of Juridical Studies |
| MJS | Mara Jade Skywalker (Star Wars; fictional character) |
| MJS | Markov Jump System |
| MJS | Memorial Junior School (Whippany, NJ) |
| MJS | Military Judges Seminar |
| MJS | Michael John Smith Lighting Consultants (Houston, TX) |
| MJS | Myanmar Japan Software Co., Ltd. |
| MJS | Measure for Job Satisfaction (Australia) |