HKK
| Acronym | Definition |
|---|---|
| HKK | Hayastani Komunistakan Kusaktsutyun (Armenian political party) |
| HKK | Hokitika, New Zealand - Hokitika (Airport Code) |
| HKK | Herz-Kreislauf-Klinik (German: Cardiovascular Clinic) |
| HKK | Higashi Karate Kai (martial arts; UK) |
| HKK | Hong Kong Kosher (Kosher certification service; Hong Kong) |
| HKK | Hava Kuvvetleri Komutanligi |