HQ

HQ may mean:
* Hagströmer & Qviberg, Swedish investment bank
* Harley Quinn DC Comics character and enemy of Batman
* Harmony Airways IATA airline designator
* Have Quick
* Headquarters, in military parlance and other contexts
* Hero's Quest (computer game)
* HeroQuest (board game)
* HeroQuest (role-playing game)
* Hipness Quotient (analogous to intelligence quotient)
* Holden Kingswood HQ
* Honored Queen
* Howland Island: FIPS PUB 10-4 territory code
* HQ (album), a 1975 album by Roy Harper
* Hydro-Québec, an electrical power utility of Québec, Canada
* Home Quarters Warehouse, a defunct retail chain