KKO (disambiguation)
KKO may refer to:
- Korps Komando, a former name of the Indonesian Marine Corps
 - kko, the ISO 639-3 code for Karko language (Sudan)
 - Kinima koinonikis oikologias, an ecosocialist political party in Cyprus
 - korkein oikeus, the court of last resort for cases within the private law of Finland
 - Kuopio livestock sales cooperative, a Finnish food industry company
 - Kaikohe Aerodrome, the IATA code KKO
 - Koblenz Hauptbahnhof, the DS100 code KKO