| ouppklarade detaljer | loose ends |
| oupplyst | unenlightened |
| oupplöslig | indissoluble |
| ouppmärksam | absent |
| ouppmärksamhet | negligence |
| ouppriktighet | insincerity |
| ouppsåtlig | unintentional |
| Our Airline | Our Airline |
| Our Love To Admire | Our Love to Admire |
| Ourasie | Ourasi |
| Ourense | Ourense |
| Ouro Preto | Ouro Preto |
| Out of Rosenheim | Bagdad Café |
| Out Skerries | Out Skerries |
| Outaouais | Ottawa River |
| Outardes | Rivière aux Outardes |
| outforskad | uncharted |
| outgrundlig | impenetrable |
| outgrundliga äro Herrens vägar | God works in mysterious ways |
| outgrundlighet | inscrutability |
| outhärdlig | unbearable |
| outhärdligt | unbearable |
| OutKast | OutKast |
| Outlaws | The Outlaws |
| Outlet | Outlet store |
| Outlook Express | Outlook Express |
| outnyttjad | untapped |
| outplånlig | indelible |
| Outremer | Outremer |
| outrotlig | persisting |
| outsider | outsider |
| outsläcklig | inextinguishable |
| outspädd | plain |
| outsägbar | inexpressible |
| outsäglig | nameless |
| outtalad | tacit |
| outtalbar | unpronounceable |
