| okokt | raw |
| okomplicerad | simple |
| okomprimerad | unpacked |
| okomprimerade | uncompressed |
| Okonomiyaki | Okonomiyaki |
| okonstlad | natural |
| okonstnärlig | inartistic |
| okontrollerad | unbridled |
| okontrollerat | uncontrollably |
| okontrollerat utsläpp av organismer | accidental release of organisms |
| okontrollerbar | uncontrollable |
| okontrollerbart | uncontrollably |
| okonventionell | unconventional |
| okonventionellt | unconventionally |
| okra | okra |
| okritisk | uncritical |
| okroppslig | immaterial |
| okrossbar | unbreakable |
| okränkbar | sacrosanct |
| okränkbarhet | inviolability |
| okränkt | inviolate |
| Oksana Akinsjina | Oksana Akinshina |
| Oktala talsystemet | Octal |
| Oktalt | Octal |
| oktan | octane |
| Oktanten | Octans |
| oktav | octavo |
| oktavformat | octavo |
| oktett | octet |
| Oktettregeln | Octet rule |
| oktober | October |
