MKKK
| Acronym | Definition |
|---|---|
| MKKK | Majlis Kebajikan Keluarga Kedah (Malay: Kedah Family Welfare Council; Kedah, Malaysia) |
| MKKK | Mazowiecki Klub Karate Kyokushin (Polish: Mazowiecki Kyokushin Karate Club) |
| MKKK | Maj Karman Kauniit Kuvat (Finnish band) |
| MKKK | MAP (Mitogen-Activated Protein) Kinase Kinase Kinase (biochemistry) |