| Acronym | Definition |
|---|
| OKK➣Kokomo, Indiana (Airport Code) |
| OKK➣Oud Katholieke Kerk (Dutch: Old Catholic Church; Netherlands) |
| OKK➣Osaka Kuko Kotsu (Japanese airport) |
| OKK➣Oslo Kamera Klubb (Norwegian: Oslo Camera Club; Norway; est. 1921) |
| OKK➣Orang Kaya-Kaya (Malaysian title) |
| OKK➣Oostelijke Kunststof Keten (Dutch: Eastern Plastic Chain) |