MHQ
| Acronym | Definition |
|---|---|
| MHQ | Maritime Headquarters (RN, Collocated with RCC) |
| MHQ | Mariehamn, Aland Island, Finland (Airport Code) |
| MHQ | Marine Headquarters |
| MHQ | Metroid Headquarters (gaming website) |
| MHQ | Modding Headquarters (video game website) |
| MHQ | Marge Hamilton Quartet (Jazz ensemble, Melbourne, Australia) |
| MHQ | MadhouseHQ (website) |