- DKK stands for Dansk Kennel Klub (Danish: Danish Kennel Club; est. 1897)
- DKK stands for Deutsches Klima-Konsortium (German: German Climate Consortium)
- DKK stands for Det Kommunale Kartel (Danish: The Municipal Cartel; labor organization)
- DKK stands for Danish Krones (currency code)
- DKK stands for Dublin Kendo Kobukai (martial arts; Ireland)
- DKK stands for Dana Kemanusiaan Kompas (Indonesian: Humanitarian Fund of Kompas)
- DKK stands for Dallas Koi Kichi (koi fish organization; Texas)
- DKK stands for Deniz Kuvvetleri Komutanligi
DKK