- Dean Right
- Dean Stag/Disaster Club
- Dean the Hedgehog
- Dean the Wolf
- DeathLord Nexus XIII
- Death Egg
- Death Egg-Mondo
- Death Egg Mark III Zone
- Death Nova
- Death the Chao
- Death the Hedgehog
- Death the Hedgehog/Gallery
- Death the Hedgehog/Relationships
- Deathskew
- Deathwall
- Debauchage
- Deborah and Honesty the Combined Hedgehogs
- Decebal, Manisha, and Ismene
- Decoe (IncaIceBunny's Universe)
- Deep Impact
- Deep Inferno
- Defectus Equites
- Defend The Motherland
- Defusion
- Defying the Odds
- Defying the Odds/Chapter 1: Questions
- Defying the Odds/Prologue: Convicted
- Del'taan
- Delete this
- Delightful the Cat
- Delila the HedgeCat
- Delilah the Cat (RFU)
- Delmare the Bear
- Delphonus
- Delta 34
- Delta Search
- Democratic People's Republic of Spagonia
- Demon Hunter Massacre
- Demon Karitori
- Demon Rank
- Demon Slayer Armor
- Demon Slayer Organization
- Demons
- Demons (Re: Sonic GX)
- Dempsey the Tiger
- Dena and Sora Sports Mix
- Dena the Hedgehog
- Denis Black Prower
- Denise the Chameleon
- Denkitachi
- Denkitachi/Subspecies
- Denno Sentai Digiranger
- Denying Intent of Power
- Denying Intent of Power/Episode Text
- Depths of Dimensions
- Depths of Dimensions/Part 1?
- Depths of Dimensions/Part 1J
- Depths of Dimensions/Part 1R
- Depths of Dimensions/Part 1S
- Depths of Dimensions/Part 2J (SL)
- Depths of Dimensions/Part 2J (SO)
- Depths of Dimensions/Part 2J (SO)/Singing Bit 1
- Depths of Dimensions/Part 2J (SO)/Singing Bit 2
- Depths of Dimensions/Part 2J (SO)/Singing Bit 3
- Depths of Dimensions/Part 2J (SR)
- Depths of Dimensions/Part 2S
- Depths of Dimensions/Part 3J (HB)
- Deraj Ivan Bradanska (Personal Biography)
- Derek The Hedgehog(ResonanceDude)
- Derek the Deer
- Derek the Hedgehog
- Derr, God of Knowledge
- Derrick the Hedgechidna (Hybrid)
- Deruka
- Desert Hawk
- Desert Ocean Zone
- Desert Sands
- Desert Walkers
- Despacito-chan
- Despair Darkmind
- Desperate Hedgehogs
- Destiney and Gwen: Time Travelers
- Destiney the Hedgehog
- Destiny & Fate (Katanas)
- Destructive Beam
- Destructix (Neo Mobius)
- Detective Sonic
- Determination
- Detonator the Weasel
- Devi "Delross" Devilan
- Devil Fruit (Sonic Piece)
- Devoyva the Conqueror
- Dexter of Awesomeness
- Dexter the Fox
- Deyna Ryunosuke
- Dezunu The Hedgehog
- Diablo y dios
- Diamond Bling the Spider
- Diamond the Chipmunk
- Diamond the Hedgehog
- Diamond the echidna
- Diana Giffard
- Diana Smith
- Diana The Rabbit
- Dibujo the Nexus
- Dice the Mech Mantis
- Diddy Bandicoot
- Dig
- Dig Under
- Digger the Dog
- Digital Cyberspace
- Dillard the Dunnart
- Dimension of the Creation Spirits
- Dimensional Chaos
- Dimitri (Burpy's Dream)
- Dimitri (MxG)
- Dimitri Chronicles
- Dimitri Chronicles/History
- Dimitri Chronicles/Lore
- Dimitri Chronicles: Age of Heroes
- Dimitri Chronicles: Age of Heroes/All For One
- Dimitri Chronicles: Flames of Courage
- Dimitri Chronicles: Flames of Courage/Before the Storm
- Dimitri Chronicles: Flames of Courage/Epilogue
- Dimitri Chronicles: Flames of Courage/Nightmare Reborn
- Dimitri Chronicles: Flames of Courage/Red Roses, Black Hearts
- Dimitri Chronicles: Flames of Courage/The Blood-Soaked Empress
- Dimitri Chronicles: Reign of Darkness
- Dimitri Chronicles: Reign of Darkness/Epilogue
- Dimitri Chronicles: Reign of Darkness/Featured Article Interview
- Dimitri Chronicles: Reign of Darkness/Oblivion of Shadows
- Dimitri Chronicles: Reign of Darkness/Rise of the Mystic
- Dimitri Chronicles: Reign of Darkness/The Moonlight Pledge
- Dimitri Chronicles: Reign of Darkness/Twilight Whispers
- Dimitri Prinus the Echidna
- Dimitri Prinus the Echidna/History
- Dimitri Prinus the Echidna/Interview
- Dinnic the Foodhog
- Dino-Emeralds
- Dino-Emeralds III
- Dire Wolf Pack
- Dire the Werewolf
- Dire the Wolf
- Dirk Aleshire
- Dirk the Cat
- Disadorna the Crystalhog
- Disaster Club
- Disaster Club/Gameplay
- Disaster Club/NPC fighters
- Disaster Club/Story Mode
- Dischordia the Werewolf
- Disco The HedgeFox
- Discord, Carnage and Ruin
- Discord Industries
- Discord the Devil Chao
- Discord the Fox
- Dismal the Hedgehog
- Dismissed
- Displacement
- Ditka "Renegade" the CyberWolverine
- Ditzy-Pixie "Dot"
- Ditzy The Weasel
- Divide and Conquer
- Divine the Djinn
- Dixie Kwill
- Djinn Princess (Monsterverse)
- Djinn Soul
- Dlan
- Docks
- Doctor & Hedgehog
- Doctor Abraxas
- Doctor Eggman's inside story
- Doctor Eggman(Video Game)
- Doctor Eggman/Darkest Shadow's Universe
- Doctor Eggman (Speed Chronicles)
- Doctor Extractor
- Doctor Ivo "Eggman" Robotnik/Marshalia13's Universe
- Doctor Ivo Robotnik (New Universe)
- Doctor Ivo Robotnik (Sonic Underground: The Continuation)
- Doctor Jay the Hedgehog
- Doctor Robotnik (alternate dimension) (AngieYaz Sonic Underground reboot)
- Doctor Sinnex
- Doctor Tangent
- Doctor Tangent's Robot Army
- Dogwood Forest
- Dolly the Cow
- Dom Thomason
- Domestic Radical Adventures
- Domestic Radical Adventures: Victory Streak
- Domestic Radical Adventures Forever
- Domestic Radical Pokemon
- Domina the Rabbit
- Domini
- Dominik the Devil
- Domino the Quoll
- Dominus
- Dong the Power Hedgehog
- Donna the Echidna (Artificial Intelligence)
- Doo Bot (AngieYaz Sonic Underground reboot)
- DoodleHog
- Doom1989 Continuity
- Doom The Hedgehog
- Doom the Hedgehog (That's Not Funny)
- Doomguy The Alligator
- Doomtress the Hedgehog
- Doorstep Gift
- Doppel the chao
- Dorian the cat
- Doriteverse
- Doriteverse/Mobians
- Doriteverse/Mobini
- Doriteverse/Mobini/Chao
- Doriteverse/Robians
- Doriteverse/Undeveloped Characters
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