| 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 | Dagmar Neubauer-Rübsam | Dagmar Neubauer-Rubsam |
| Dagmar Rübsam | Dagmar Rübsam-Neubauer | Dagmar Rom |
