| Drzewo AST | Abstract syntax tree |
| Drzewo czerwono-czarne | Red-black tree |
| Drzewo czwórkowe | Quadtree |
| Drzewo filogenetyczne | Phylogenetic tree |
| drzewo genealogiczne | family tree |
| Drzewo genealogiczne bóstw greckich | Family tree of the Greek gods |
| Drzewo gry | Game tree |
| drzewo iglaste | conifer |
| Drzewo Jessego | Tree of Jesse |
| Drzewo Jozuego | Joshua tree |
| drzewo liściaste | deciduous tree |
| drzewo owocowe | fruit tree |
| drzewo pomarańczowe | orange |
| Drzewo poziomkowe | Arbutus |
| Drzewo poznania dobra i zła | Tree of Knowledge of Good and Evil |
| Drzewo Sterna-Brocota | Stern-Brocot tree |
| Drzewo trie | Trie |
| Drzewo ósemkowe | Octree |
| drzeworytnictwo | xylography |
| Drzewołaz błękitny | Dendrobates azureus |
| Drzewołaz karłowaty | Strawberry Poison-dart Frog |
| Drzewołazy | Poison dart frog |
| drzwi | gate |
| drzwi obrotowe | revolving door |
| Drzwi percepcji | The Doors of Perception |
| drzwi piwniczne | cellar door |
| drób | poultry |
| dróżka | lane |
| Drôme | Drôme |
| Drømte mig en drøm i nat | Drømte mig en drøm i nat |
| Drăgăşani | Drăgăşani |
| Drążek Panharda | Panhard rod |
| Drążek skrętny | Torsion beam suspension |
| dręczyciel | tormentor |
| dręczyć | beset |
| Drętwowate | Torpedinidae |
| drżenie | thrill |
| drżeć | shiver |
| DS | DS |
| DSB Stadion | DSB Stadion |
| Dschuba | Delta Scorpii |
| DSF | Deutsches Sportfernsehen |
| DSG | Direct-Shift Gearbox |
| DSL | Digital subscriber line |
| DSM-IV | Diagnostic and Statistical Manual of Mental Disorders |
| DSSS | Direct-sequence spread spectrum |
| DST | Direction de la surveillance du territoire |
| DTD | Document Type Definition |
| DTMF | Dual-tone multi-frequency |
| Du Fu | Du Fu |
| Du riechst so gut | Du riechst so gut |
| Dual channel | Dual-channel architecture |
| Duala | Douala |
| Dualizm | Dualism |
| dualizm korpuskularno-falowy | wave-particle duality |
| dualność | duality |
| DualShock | DualShock |
| Duamutef | Duamutef |
| Dub | Dub music |
| Dub poetry | Dub poetry |
| Duba | Duba |
| Dubai Knowledge Village | Dubai Knowledge Village |
| Dubai Marina | Dubai Marina |
| Dubai Tennis Championships | Dubai Tennis Championships |
| Dubai World Trade Centre | Dubai World Trade Centre |
| Dubaj | Dubai |
| Dubawnt | Dubawnt Lake |
| dubbing | dubbing |
| dubbingować | dub |
| dubeltówka | double-barrelled shotgun |
| Dubhe | Alpha Ursae Majoris |
| Dubinki | Dubingiai |
| dubler | body double |
| Dublet | The Double |
| Dublin | Dublin |
| Dublin Core | Dublin Core |
| Dublińczycy | Dubliners |
| dubn | dubnium |
| Dubna | Dubna |
| Dubnica nad Váhom | Dubnica nad Váhom |
| Dubno | Dubno |
| Dubravka Ugrešić | Dubravka Ugrešić |
| Dubrovacko-neretvanska županija | Dubrovnik-Neretva County |
| Dubrovačko-neretvanska županija | Dubrovnik-Neretva County |
| Dubrownik | Dubrovnik |
| dubstep | dubstep |
| Dubăsari | Dubăsari |
| Ducati | Ducati Motor Holding |
| Duccio di Buoninsegna | Duccio |
| duch | mind |
| Duch dziejów | Zeitgeist |
| Duch III | Poltergeist III |
| Duch minionych świąt Bożego Narodzenia | Ghost of Christmas Past |
| duch przyszłych świąt Bożego Narodzenia | Ghost of Christmas Yet to Come |
| duch teraźniejszych świąt Bożego Narodzenia | Ghost of Christmas Present |
| Duch zły gór | Troll |
| Duch Úwićty | Holy Ghost |
| Duch Święty | Holy Ghost |
| Duchacze | Holy Ghost Fathers |
| Duchoborcy | Doukhobor |
| duchowieństwo | clergy |
| duchowny | ecclesiastical |
| duchowo | spiritually |
| duchowy | spiritual |
| Ducie | Ducie Island |
| dudek | hoopoe |
| Duderstadt | Duderstadt |
| Dudesons | The Dudesons |
| Dudince | Dudince |
| Dudinka | Dudinka |
| Dudley | Dudley |
| Dudu Cearense | Dudu Cearense |
| duduk | duduk |
| Dudváh | Dudváh |
| dudy | bagpipe |
| dudziarz | piper |
| Dudżail | Dujail |
| DuelJewel | Duel Jewel |
| Duero | Douro |
| duet | duet |
| DUEWAG | DUEWAG |
| Duff McKagan | Duff McKagan |
| Dufourspitze | Dufourspitze |
| Duga Resa | Duga Resa |
| Dugga | Dougga |
| Duggendorf | Duggendorf |
| Dugi Otok | Dugi Otok |
| Dugo Selo | Dugo Selo |
| Duillier | Duillier |
| Duino-Aurisina | Duino |
| Duisburg | Duisburg |
| Duje | Duje |
| Dujker czarnopręgi | Bay Duiker |
| Dujker czarny | Black Duiker |
| Dujker siwopręgi | Red-flanked Duiker |
| Dujker zebrowaty | Zebra Duiker |
| Dujker żółtopręgi | Yellow-backed Duiker |
| Duke Ellington | Duke Ellington |
| Duke Nukem | Duke Nukem |
| Dukkak z Damaszku | Duqaq |
| Dukkala-Abda | Doukkala-Abda |
| Dukla | Dukla |
| Dukla Bańska Bystrzyca | FK Dukla Banská Bystrica |
| Dukla Jihlava | HC Jihlava |
| Dukla Praga | Dukla Praha |
| Dukla Trenczyn | HC Dukla Trenčín |
| Duklja | Duklja |
| Dukovce | Dukovce |
| Dukszty | Dūkštas |
| DUKW | DUKW |
| Dulce | Dulce River |
| Dulebowie | Dulebes |
| dulka | oarlock |
| Dullahan | Dullahan |
| Dulo | Dulo clan |
| duma | haughtiness |
| Duma i uprzedzenie | Pride and Prejudice |
| Duma Państwowa | State Duma |
| Dumaguete | Dumaguete City |
| Dumas | Dumas |
| Dumbarton | Dumbarton |
| Dumbier | Ďumbier |
| Dumfries | Dumfries |
| Dumfries and Galloway | Dumfries and Galloway |
| dumny | boastful |
| Dumortieryt | Dumortierite |
| Duna TV | Duna TV |
| Dunaj | Danube |
| Dunajec | Dunajec |
| Dunajov | Dunajov |
| Dunajowce | Dunaivtsi |
| dunajski | Danubian |
| Dunajská Streda | Dunajská Streda |
| Dunama Dibbalami | Dunama Dabbalemi |
| Dunaw Ruse | FC Dunav Rousse |
| Dunaújváros | Dunaújváros |
| Duncan | Duncan |
| Duncan I | Duncan I of Scotland |
| Duncan II | Duncan II of Scotland |
| Dundalk | Dundalk |
| Dundas Square | Yonge-Dundas Square |
| Dundee | Dundee |
| Dune II | Dune II |
| Dunedin | Dunedin |
| Dunfermline | Dunfermline |
| Dunga | Dunga |
| Dungeon crawl | Dungeon crawl |
| Dunharrow | Dunharrow |
| Dunhill | Dunhill |
| Dunhuang | Dunhuang |
| Dunka | Dane |
| Dunkierka | Dunkirk |
| Dunkleosteus | Dunkleosteus |
| Dunland | Dunland |
| Dunningen | Dunningen |
| Duobus | Dual-mode bus |
| duoteizm | duotheism |
| dupa | asshole |
