| CY | Cy Denneny | Cyaniris argianus |
| Cyaniris semiargus | Cyanistes caeruleus | Cyanobacteria |
| Cyanocitta cristata | Cyanococcus | Cyanophyta |
| Cyberpunk 2077 | CyberWISER Light | Cycadales |
| Cycadophyta | Cycadopsida | Cyclamen |
| Cyclone Taylor | Cyclone Taylor Award | Cyclone Taylor Trophy |
| Cyclopaedia, or Universal Dictionary of Arts and Sciences | Cyclopterus | Cyclopterus lumpus |
| Cyclosa conica | Cyclosa strandjae | Cyclosternum fasciatum |
| Cydalima perspectalis | Cydia amplana | Cydia funebrana |
| Cydia molesta | Cydia nigricana | Cydia nigricana asiatica |
| Cydia pomonella | Cydia pomonella simpsonii | Cydia pyrivora |
| Cydonia oblonga | Cydonie Mothersille | Cygnini |
| Cygnus | Cygnus cygnus | Cygnus olor |
| Cygnus olor immutabilis | Cygnus X-1 | Cygwin |
| Cylindropuntia | Cylindropuntia acanthocarpa | Cymbidium pallens |
| Cymru | Cynar | Cynara cardunculus |
| Cyndi Lauper | Cynocephalidae | CYP |
| Cyprian Kamil Norwid | Cyprian Norwid | Cyprinidae |
| Cypriniformes | Cyprinus aphya | Cyprinus carpio |
| Cyprinus morella | Cyprinus phoxinus | Cypripedium calceolus |
| Cyprus | Cyr-Auguste-Marie-Emile-Henri de Lafond | Cyril A. Clowes |
| Cyril Albert Clowes | Cyril Arthur Lyon | Cyril B. B. White |
| Cyril Brudenell Bingham White | Cyril Burt | Cyril Clowes |
| Cyril Collier Duchesné | Cyril Colnik | Cyril Dessel |
| Cyril Deverell | Cyril Dupré Noyes | Cyril Elliott Davis |
| Cyril Ernest Napier Lomax | Cyril Frederick Charles Coleman | Cyril Genik |
| Cyril Gordon Martin | Cyril Henry Norton | Cyril Hinshelwood |
| Cyril John Deverell | Cyril Joseph "Cy" Denneny | Cyril Joseph Cy Denneny |
| Cyril Joseph Denneny | Cyril Lawrence | Cyril Lomax |
| Cyril Lowe | Cyril Marzolo | Cyril Maton Periam Durnford |
| Cyril Nelson Barclay | Cyril Nelson Lowe | Cyril Norman Hinshelwood |
| Cyril Oscar Lawrence | Cyril Poole | Cyril V. Jackson |
| Cyril Vernon Lechmere Lycett | Cyril White | Cyril William Bacon |
| Cyril Wyche | Cyrtophora conica | Cyrus Greenslade |
| Cytisus laburnum | CZ | CZ 2075 |
| CZ 2075 Rami | CZ 75 | CZ Rami |
| CZ TT | CZ-100 | CZ-2075 |
| CZ-75 | CZ-TT | Cz2075 |
| CZ2075 RAMI | CZ75 | CZAW |
| CZAW Mermaid | CZAW Parrot | CZAW SportCruiser |
| Człowiek z żelaza | Częstochowa | CZD |
| Czech Republic | Czech Sport Aircraft | Czernihów |
| Czerniowce | Czernowitz | Czerny |
| Czesław Jarnuszkiewicz | Czesław Jarnuszkiewski | Czesław Młot-Fijałkowski |
| Czesław Miłosz | Czesław Milosz | Czeslaw Miłosz |
| Czeslaw Milosz | CZK | Czvetan Matyas |
| Czvetán Mátyás | D | D Base |
| D&D | D'Alembert | D'Alembertov kriterij |
| D'Alembertov kvocientni kriterij | D'Alembertova enáčba | D'Alembertova sila |
| D'Alembertovo načelo | D'Andre Hill | D'Arcy Coulson |
| D'arcy Coulson | D'Arcy F. Hilton | D'Arcy Fowlis Hilton |
| D'Arcy Hilton | D'Arrestov komet | D'Nash |
| D'Urvillovo morje | D-blok | D-dimer |
| D-Fact | D-fact | D-orbitala |
| D-pain | D-riboza | D. C. |
| D. d. | D. Fernand A. Vander Haeghen | D. Gheorghe Marinescu |
| D. H. Lawrence | D. Ioan Popescu | D. Luter Martina máli kátekismuš |
| D. Luther Martina mali katekismus | D. Luther Martina máli kátekismus | D. o. o. |
| D. T. Suzuki | D. W. Griffith | D.520 |
| D.A.R.E. | D.C. | D.d. |
| D.L.R.K. | D.n.o. | D.o.o |
| D.o.o. | D3A | D4Y |
| D4Y Judy | Da | Da bi bili eno |
| Da capo | Da Džja | Da Ding |
| Da Geng | Da Lat | Da Nang |
| Da Palestrina | Da Pontejev vodnjak | Da Pontejev vodnjak, Koper |
| Da Vinčijeva šifra | Da vinci | Da Vinci |
| Da Vincijeva šifra | Da Vincijeva šifra (knjiga) | Da Vincijeva šifra (roman) |
| Da Vu | Da Zhou Tian | Da, dragi! Da, draga! |
| Da, dragi! Da. draga! | DAA | DAAO |
| DAAO (identifikator) | Dačani | Daša |
| Daša Doberšek | Daša Grm | Dašča Rijeka |
| Dašičev | Dašnica (razločitev) | Dašnica, Aleksandrovac |
| Dašnica, Aleksinac | Daði Freyr | Dažbog |
| Dabašnica | Dabanovič | Dabar (razločitev) |
| Dabar, Hrvace | Dabar, Otočac | Dabas (mesto) |
| Daber | Dabezići | Dabič |
| Dabinovac | Daboia Xanthina | Dabojevići |
| Dabrafenib | Dabrina | Dabronc |
| Dabrony | Dabujidi | DAC 120 DE |
| Dachau | Dachauski procesi | Dachauski procesi (Nemčija) |
| Dachauski procesi (Slovenija) | Dachstein | Dachstein (Francja) |
| Dachstein, Francija | Dacia | Dacia (car) |
| Dacia (podjetje) | Dacići | Dacit |
| Dacron | Dactylorhiza fuchsii | Dad, Madžarska |
| Dadaizem | Daddy Cool (Boney M.) | Daddy Cool (razločitev) |
| Daddy Yankee | Dadianijeva palača | Dadince |
| Dado Topić | Daeron | Daewon Song |
| Daewoo DP 40 | Daewoo DP 51 | Daewoo DP-40 |
| Daewoo DP-51 | Daewoo DP40 | Daewoo DP51 |
| Daewoo K5 | Daewoo Motors | Daewoo Shipbuilding & Marine Engineering |
| DAF | Dafna | Dafne |
| Dafne (luna) | Dafnis (luna) | Dafnis in Hloa |
| Daft Punk | Dag | Dag Hammarskjöld |
| Dag Hammarskjold | Dag Kleva | DAG400 (meteorit) |
| Dagajev | Dagana dzong | Dagö |
| Dagerotip | Dagerotipija | Dagestan |
| Dagmar | Dagmar (moško ime) | Dagmar (razločitev) |
| Dagmar Šuster | Dagmar Češka | Dagmar Kaesling |
| Dagmar Kasling | Dagmar Käsling | Dagmar Neubauer |
