- Hounds
- House Bittenbach
- House Brightline
- House Chasmata
- House Evenfall Altarworks
- House Kesh
- House Pelagios
- House Whitestar
- How It Always Looks
- How It Always Looks Pt. 1
- How It Always Looks Pt. 2
- Hudson Thorne
- Human
- Humans
- Hunting Tomorrow
- Hyacinth
- Hymn of the Mother-Beast
- Hymn of the Mother-Beast (disambiguation)
- Hymn of the Mother-Beast (location)
- Hymn of the Mother-Beast (song)
- Hymn of the Mother-Beast Arc
- Hymnal of the Mother-Beast
- Hypha
- Hyphan
- I'm AM R U
- I'm Not Happy With This Decision At All
- I've Killed Monsters
- I Am Not Allowed
- I Don't Know What's in That Box
- I Would Like A Bribe
- I Would Like to Help You
- I Would Like to Help You Pt. 1
- I Would Like to Help You Pt. 2
- Ibex
- Ice Party
- Icebreaker Prime
- Iclans Slinger
- Iconoclast
- Iconoclastics
- Iconoclasts
- Iduna
- Iduna Fel
- If Han Solo Used To Be Beyoncé, or: Hashtag Otechku
- Ignadiah
- Iklins Slinger
- Immortal Doll
- Imperium
- Imperium's Plume
- Imperium’s Plume
- Impetus
- InSpectres
- In Their Fear
- In Their Fear Pt. 1
- In Their Fear Pt. 2
- Independence
- Independence Mk II
- Independents
- Ingrate
- Inhuman Conditions
- Inside & Outside
- Inside & Outside: Friends At The Table Soundtrack, Season Three
- Inspectres
- Insurmountable Odds
- Integrity
- Interred Citadel
- Interstellar travel
- Into the World
- Into the World Pt. 1
- Into the World Pt. 2
- Ionias
- Iota Pretense
- Irene Klipsch-Dove
- Iris
- Iris Parish
- Iron Choir
- Is It Time Already?
- Is There Anyone Else?
- Isaac
- Isaac Adelton
- Isaac Adleton
- Island of Aubade
- Isle Aubade
- Isle of Eventide
- Isle of the Broken Key
- Isles of Flight
- Isles of Logos
- It
- It's Fine, We're Criminals
- It's Still Dark Out
- It (Sangfielle)
- Ithikos
- Ithikos family
- Ivory Prince
- I’m AM, R U?
- J-M 27
- J-m 27
- Jace Rethal
- Jack
- Jack de Quidt
- Jackie Johansson
- Jackie Marigold Show
- Jackpot Supreme
- Jacob Sound
- Jacqui Green
- Jacson Mallone
- Jade Kill
- Jade Moon
- Jade Moon Arc
- Jak T’hell
- Jake the Jackal
- Jakob Van Der
- Jam juice
- James Garret
- James “Magnolia” James
- Jamian Raine
- Jamil Quartz-Noble
- Janek Polyte
- Janey
- Janey Errania
- Janie Erannia
- Janine
- Janine Hawkins
- Jean Kurr
- Jeff Brown
- Jeff Brown Dentistry
- Jeff Brown Jr
- Jeff Moran
- Jellicle
- Jelly juice
- Jennifer Jetta
- Jerboa
- Jeremy
- Jeremy (steward)
- Jeremy (train steward)
- Jeremy (undead)
- Jericho
- Jericho Alum
- Jerod
- Jerod Shiraz
- Jeromy “Romy” Gride
- Jerry’s 24 Hour Fish Supply Store
- Jesset City
- Jessica Namour
- Jev'ari Estano
- Jev’ari Estano
- Jill (Bluff City)
- Jillian Red
- Jimmy Steamanski
- Jodie Garret
- Jodie O’Brian
- Joe de Vivre
- Johan We-Pray-Absolutely-Nightly
- John-Peter Foster Jr.
- John Paul St James
- Jolyon
- Jorne
- Josephine Joy
- Josie Highsmith
- Joyous Guard
- Joypark
- Judy Waters
- Julian H Bluff
- Juniper-3
- Juno Eveningeyre
- Jury
- Just Another Machine
- Just Returns
- Just Returns Arc
- Just Returns Pt. 1
- Just Returns Pt. 2
- Just Returns Pt. 3
- Just Returns Pt. 4
- Just Returns Pt. 5
- K.O.
- K.O. Rooke
- KRK-56
- Ka-Ching Casino Repair
- Kadaknath
- Kaffe
- Kaitankro
- Kal'Mera Broun
- Kal'mera Braun
- Kal'mera Broun
- Kal'mira Braun
- Kalar Anakalar
- Kalatepsis Mk. II
- Kaliope Flow
- Kalliope
- Kalmeria
- Kalmeria Particle
- Kalvin Brnine
- Kal’Mera Broun
- Kal’mera Braun
- Kal’mera Broun
- Kamala Cadence
- Kansas City Kate / Kansas City Kim
- Kanton
- Karston Leberge
- Katalepsis Mk. II
- Katalepsis Mk II
- Kathekon
- Kathēkon
- Katonya
- Kay
- Keaton Jerf
- Keen
- Keen Forester Gloaming
- Keith
- Keith Carberry
- Keith Carberry (character)
- Keith J. Carberry
- Keith J Carberry
- Kel Carolina
- Kengine Engine
- Kenneth Marian Colver
- Kensley Marlowe Colver
- Kent Brighton
- Kentucky's Corona
- Kenzington Bee
- Kenzington “Kenzi” Be
- Kerr Kern
- Kerry Adler
- Kesh
- Kesh (disambiguation)
- Kesh (planet)
- Kestral
- Kestral White
- Keyfield suit
- Khamala Cadence
- Kinday
- Kindrale
- Kindrali
- Kindralli
- Kindrally
- Kindraly
- King Charles
- Kingdom
- Kingdom (COUNTER/Weight)
- Kingdom (PARTIZAN)
- Kingdom Come
- Kingdom Come (boat)
- Kingdom Come (spaceship)
- Kingfish Pier
- Kinoki
- Kira Voight
- Kirst Bittenbach
- Kitcha Kana
- Kitcha Kanna
- Kiva Helsing
- Kleos
- Knighton Reach
- Knoll Hollow
- Knowledge and Ignorance
- Kobbin
- Kobold
- Kobolds
- Kobus
- Koda Whitegloves
- Kodiak
- Kojack Variety
- Korin Kim
- Korrin Kim
- Kosmos
- Krent Kava
- Kriminel Kollage
- Kueen Overture "K.O" Rooke
- Kueen Overture "K.O." Rooke
- Kueen Overture Rooke
- LANCER
- Lack
- Lack House
- Lacks
- Lacuna
- Lacuna Part 1
- Lady Blackbird
- Lady Ziziliana Esterhazy
- Lady Zizilliana Esterhazy
- Lady Zizilliana Esterházy
- Lake Timea
- Lambic House
- Lament
- Lamina
- Lance Noble Chrysanthemum
- Lance Noble Helianthus
- Lance Noble Iris
- Lance Noble Orchid
- Lance Noble Quince
- Lance Noble Victoria Solomon
- Lance Noble Violet
- Lance Sovereign Marielda
- Lancer
- Lancer Pt. 1
- Lancer Pt. 2
- Lancer Pt. 3
- Larch
- Lardwulf
- Laris
- Larry
- Lasers & Feelings
- Lasers and Feelings
- Last Rest
- Last Shooting
- Last Shooting (episode)
- Last University
- Lattice
- Lauranee
- Lauranee Lovekin
- Laurel
- Law
- Layabout
- Layer Luxurious
- Lazer Ted
- Leadership
- Leaf Cart-horn
- Leal Leraphon
- Leap
- Ledman Adelbury McGillicuddy Johnson Johansen Maestro Abelton Alexander Quinton Carver Mason Brubaker Seagram Lenova IV
- Ledman Lenova IV
- Lee L. Bee
- Legs (Bluff City)
- Lejune Borr
- Lem
- Lem's plant
- Lem King
- Lenny
- Lenny Lenova
- Lenny Reed
- Lenore Voivode
- Leon Laramie
- Leslie Strada
- Lessbash
- Lesser Regent Rowena Lee
- Levi Cascabel-Gardner
- Levitation Cascabel-Gardner
- Liberty and Discovery
- Liberty and Discovery Automaticorps
- Like Falling Leaves
- Like Sneaky Little Sneaks
- Like What We Used To Do
- Liliaceae Whist Demaree
- Lilith
- Lilith R'ion
- Lilith R'ione
- Lilith Reone
- Lily Lysander