| ductilidade | ductility |
| ducto | duct |
| ducto deferente | vas deferens |
| Ducto parotídeo | Parotid duct |
| Duderstadt | Duderstadt |
| Dudince | Dudince |
| Dudinka | Dudinka |
| Dudjom Rinpoche | Dudjom Rinpoche |
| Due romanze per violino ed orchestra | Violin Romances |
| duelista | duellist |
| duelo | rally |
| Duelo na Poeira | Pat Garrett and Billy the Kid |
| dueloe | duelge |
| duende | elf |
| Duende Verde | Green Goblin |
| duendes | elvese |
| dueto | duet |
| duetoe | duetge |
| Duff Cooper | Duff Cooper |
| Duff McKagan | Duff McKagan |
| Dugongidae | Dugongidae |
| Dugongo | Dugong |
| Duillier | Duillier |
| Duina Ocidental | Daugava |
| Duino-Aurisina | Duino |
| Duisburgo | Duisburg |
| Dukat | Dukat |
| Duke | Duke |
| Duke Ellington | Duke Ellington |
| Duke University | Duke University |
| Dukkha | Dukkha |
| dulcamara | bittersweet |
| Dulce Berenguer de Barcelona | Dulce Berenguer |
| Dulce María | Dulce María |
| Dulliken | Dulliken |
| Duloxetina | Duloxetine |
| dum dia para o outro | overnight |
| duma | duma |
| Dumb Witness | Dumb Witness |
| Dumbarton | Dumbarton |
| Dumfries | Dumfries |
| Dumitru Prunariu | Dumitru Prunariu |
| Dumnonia | Domnonia |
| Dumper | Tip-cart |
| dumping | dumping |
| Dumuzi | Tammuz |
| duna | dune |
| duna de areia | sand dune |
| dunae | dunege |
| Dunajská Streda | Dunajská Streda District |
| Dunajský Klátov | Dunajský Klátov |
| dunas | dune |
| dunas de areia | sand dune |
| Dunash ben Labrat | Dunash ben Labrat |
| Dunaújváros | Dunaújváros |
| Duncan I da Escócia | Duncan I of Scotland |
| Duncan II da Escócia | Duncan II of Scotland |
| Duncan Quagmire | Quagmire triplets |
| Dundalk | Dundalk |
| Dundas Square | Yonge-Dundas Square |
| Dundee | Dundee |
| Dundgovĭ | Dundgovi Province |
| Dune | Dune |
| Dunedin | Dunedin |
| Dunfermline | Dunfermline |
| Dunhuang | Dunhuang |
| Dunkleosteus terrelli | Dunkleosteus |
| Dunlop Tyres | Dunlop Tyres |
| dunning-letra | dunning-letter |
| Dunningen | Dunningen |
| Dunois | Jean de Dunois |
| Dunquerque | Dunkirk |
| Duns Scot | Duns Scotus |
| duo | duet |
