| Acronym | Definition |
|---|
| MKK➣MAP (Mitogen-Activated Protein) Kinase Kinase |
| MKK➣Mestna Knjiznica Kranj (Slovenian: Kranj City Library; Kranj; Slovenia) |
| MKK➣Main-Kinzig-Kreises (German district) |
| MKK➣Mitogen-Activated Protein Kinase Kinase |
| MKK➣Mata Kuliah Keahlian (Indonesian: Specialty Subject; education) |
| MKK➣Mitsubishi Kakoki Kaisha, Ltd. (est. 1995; Japan) |
| MKK➣Mitsui Kanko Kaihatsu Co., Ltd. (Japan) |
| MKK➣Hoolehua, HI, USA - Municipal (Airport Code) |