- D-19872
- D-26823
- D-45692
- D-A-C
- D.C. Fontana
- D.H. Lawrence
- D.M. Flinn
- D.T. Lancaster
- D.W. "Prof" Smith
- D. Alter
- D. Arakelian
- D. Bayard
- D. Friedman
- D. Gabrielle
- D. Gamble
- D. Gluck
- D. Hanna
- D. Hideaki Chang
- D. Hulett
- D. M. Phoenix
- D. Maltese
- D. Mitchell
- D. Tathwell
- D. Velazquez
- D. Wise
- D10 class
- D12 class
- D374-04851
- D374-04884
- D374-10584
- D374-15615
- D374-16162
- D374-16510
- D374-16615
- D374-16841
- D374-16844
- D374-18474
- D374-19081
- D374-19484
- D374-46418
- D374-56405
- D374-60518
- D374-64805
- D374-68441
- D374-78148
- D374-78914
- D374-84156
- D374-84914
- D374-85446
- D374-89411
- D374-96118
- D3 class
- D3 class (Andorian)
- D3 class (Kelvin timeline)
- D3 class (Klingon)
- D4213
- D4 class (Kelvin timeline)
- D4x class
- D5 class
- D6 class
- D7D class
- D7 class
- D8 class
- D9 class
- D9 class dreadnought
- DC Comics
- DC Comics Timeline
- DC TNG, 2nd story arc
- DC TNG, 3rd story arc
- DC continuity
- DD-2
- DD-3
- DD-4
- DD-6
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- DDG-10
- DDG-2
- DDG-3
- DDG-4
- DDG-6
- DDG-7
- DDG-8
- DDG-9
- DDL-2
- DDL-3
- DDL-4
- DDL-6
- DDL-7
- DDV T'Jal
- DDV Toth
- DD Tauri
- DD Tauri V
- DE-2
- DE-3
- DE-5
- DE-6
- DE-7
- DE-8
- DE-9
- DFC D'Kyr
- DFC Seleya
- DFC Sepok
- DFC Tal'Kir
- DIpeyj
- DIpeyj I
- DIpeyj II
- DIpeyj III
- DIyn'I
- DIyn'I I
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- DIyn'I II-A
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- DMV
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- DO-2
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- DQN 1196
- DRacla, son of Vok
- DS9 comics
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- DVD
- DVel'nahr
- DY
- DY-100
- DY-1100 class
- DY-500
- DY-6000
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- Da'Kel
- Da'Kel II
- Da'Kel III
- Da'Nikhirch
- Da'kum'Ulcha
- Da'v
- Da-leb
- DaSpu class
- DaSqor
- DaSqor I
- DaSqor I-A
- DaSqor I-B
- DaSqor II
- DaSqor III
- Da Capo al Fine
- Da Gama
- Da Nek
- Da Nek's son
- Da Vinci
- Da Vinci (SB4-0314/2)
- Da Vinci (USS Defiant)
- Da Vinci Research Base
- Da Vinci class
- Daa'V
- Daa'V system
- Daa'Vit
- Daa'Vit Confederacy
- Daavico Loang
- Dabinroot
- Dabisch
- Dabo
- Dabo girl
- Daborat
- Dace
- Dace System Patrol
- Daches'tel (23rd century)
- Daches'tel (24th century)
- Dack
- Dacoit
- Dacoit class
- Dactylus class
- Daedalus
- Daedalus's Children
- Daedalus (Centauran ship)
- Daedalus (episode)
- Daedalus (myth)
- Daedalus (novel)
- Daedalus (ship)
- Daedalus IV
- Daedalus class
- Daeinos aehallh
- Daeinos class
- Daemon Zorn
- Daemosh class
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- Daffodon IX
- Dafkie
- Dafydd ab Hugh
- Dagarth
- Dagem
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- Dagger (disambiguation)
- Dagger Warning
- Dagger of Maqatat
- Dagger of the Mind
- Daggerleaf tree
- Dagitz
- Dagragas Nai
- Dahai Iohor Naraht
- Dahar Master
- Dahj
- Dahkur
- Dahkur City
- Dahkur Hills
- Dahkur Province
- Dahleb
- Dahlia Santorini
- Dahlomh'qhu
- Dahna
- Dahnu
- Dahut class
- Dahvi
- Dai-ai
- DaiMon
- Dai Mehkan
- Dai Nistral
- Dailey
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- Daisen Hamor
- Daisy
- Daithan Ruhalter
- Daithin
- Dajera
- Dajesswimax
- Dak-Alpha
- Dak-Alpha system
- Dakahna Vaas
- Dakahna Vaas (mirror)
- Dakala
- Dakar
- Dakeen
- Dakeen Monastery
- Daken
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- Dakiak
- Dako kidney
- Dakol
- Dakona Raal
- Dakota
- Dakota class
- Dakthara
- Dal
- Dal'Rok
- Dal's Requiem Trio
- Dal Cerys
- Dal Corbin
- Dal Nortron
- Dal R'El
- Dalai Lama
- Dalak
- Dalal
- Dalanda
- Dalanda V
- Dalba Sin
- Dalbar
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- Dale L. Kemper
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- Daley
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- Dalgorian water viper
- Dalia Parks
- Dalibardadian Plains
- Dalik
- Dalin
- Dalinga Bektab
- Dalisay Dari Aquino
- Dalit Sarai
- Dalivar
- Dallas
- Dallas (disambiguation)
- Dallessandro
- Dalmine
- Dalmine sector
- Dalton recension
- Daltren
- Daly City
- Dam
- Damage
- Damage report
- Damala
- Damana
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- Damar Kahn
- Damar class (destroyer)
- Damar class (dreadnought)
- Damas Hayl
- Damascus
- Damascus class
- Damask Plain
- Damia
- Damiani
- Damiano
- Damir
- Damir Gorjanc
- Damira Enaren
- Damitol
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- Damocles Station
- Damocles system
- Dampener
- Damrose
- Damu
- Damur
- Damyz
- Dan Abnett
- Dan C. Duval
- Dan Curry
- Dan Cziraky
- Dan Duvall
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- Dan Taylor
- Dan Uyeno
- Dana Kramer-Rolls
- Dana Mitchell
- Danae Victoria
- Danan Grim
- Danar
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- Danara (disambiguation)
- Danara 5986
- Danbur Mountains
- Danby Connor
- Danby Connor (mirror)
- Dance