- Karreka, daughter of Lyyroq
- Karrias
- Karrig
- Kars
- Kars (Jerakan)
- Kars (star)
- Karsani Lorexen
- Karsay's Point
- Karsid
- Karsiom
- Kartan
- Kartan (Denevan)
- Kartelan
- Kartella
- Kartellan cave spider
- Karten
- Karten (23rd century)
- Karten (24th century)
- Kartenhaus
- Karth
- Karth Valgras
- Karth Valgras (23rd century)
- Karth Valgras (24th century)
- Karthikeyan
- Kartika
- Kartoof
- Karum
- Karuna
- Karunda coroner beetle
- Karus II
- Karuuki
- Karvic
- Karvic (23rd century)
- Karvic (24th century)
- Karvino juice
- Karvis
- Karxen
- Karxen V
- Karxiaz
- Karya
- Karzan
- Kas's battlecruiser
- Kas Maal class
- Kasak sutai Khornezh
- Kasall
- Kasar vestai Surn
- Kasatsuki
- Kaseli
- Kasella Mountains
- Kaseton bread
- Kash-to'es-khau
- Kasha Tal
- Kasheeta
- Kashimuro Nozawa
- Kashmir
- Kashrut
- Kashyk
- Kasidy Yates
- Kasidy Yates (mirror)
- Kasiel
- Kasimar
- Kaska
- Kaskall
- Kasmoc
- Kasok
- Kasomia
- Kasomia (23rd century)
- Kasomia (24th century)
- Kasrene
- Kass
- Kass (disambiguation)
- Kassae
- Kassae II
- Kassae IV
- Kassae sector
- Kassat
- Kasserite
- Kassir
- Kassus
- Kastar
- Kasteroborous
- Kasuki
- Kata
- Kata-bunny
- Kata (animal)
- Kata (posture)
- Kataal Dion
- Kataal Patiens
- Kataanian
- Kataanian memory trace
- Kataba
- Katai
- Katalya Tremain
- Katan
- Katan III
- Katana
- Katanga Mountains
- Katangan
- Katangan mountain lion
- Katann
- Katarian emerald grass
- Katarina Scott
- Katcherian
- Kate Giles
- Kate Mulgrew
- Katel
- Kateq
- Kater Onell
- Katerina Borovsky
- Katerina Mueller
- Katerina Velikovsky
- Katha'sat
- Kathar Eltrin
- Katheka
- Katherine
- Katherine Pulaski
- Katherine Pulaski (mirror)
- Katherine Seton
- Katherine Stano
- Katherine Toomajian
- Kathleen
- Kathleen Paris
- Kathleen Sky
- Kathleen Wenzel
- Katholin Arwen
- Kathra
- Kathra Mining Facility
- Kathrek
- Kathryn Janeway
- Kathryn Janeway (1ST)
- Kathryn Janeway (alternates)
- Kathryn Janeway (hologram)
- Kathryn Janeway (mirror)
- Kathy
- Kathy Leprich
- Kathy Li (23rd century)
- Kathy Li (24th century)
- Kathy McCammon
- Kathy Oltion
- Kathé
- Katie
- Katie (Selva)
- Katie (USS Enterprise-C)
- Katie (aunt)
- Katie Christopher
- Katie Lo
- Katie Wesley
- Katowa
- Katowa Expedition
- Katra
- Katra-Ut-Bala
- Katreen Riley
- Katri
- Katri system
- Katrin Gunnarsdóttir
- Katrina Cornwell
- Katrina Cornwell (mirror)
- Katrina Memorial Cemetery
- Katrina Ndiaye
- Katrina Ortega
- Katrine Schönhertz
- Katron
- Katrona
- Katsio Bando
- Kattan
- Katterpod
- Katula
- Katulu
- Katumbe
- Katz
- Kauai
- Kaud Idyn
- Kaufmann
- Kaul
- Kauld
- Kault
- Kaur'el Tennahrex
- Kaus Australis
- Kaus Borealis
- Kausuch
- Kav glasch Vokrak
- Kava
- Kava juice
- Kava nut
- Kava root
- Kaval
- Kavaria
- Kavaria system
- Kavarian tiger bat
- Kaveth (starship)
- Kavili vestai Mrith
- Kavin Jergenson
- Kavis Alpha IV
- Kavis Alpha sector
- Kavka
- Kavra
- Kavrot 66
- Kavrot sector
- Kawa Lerdo
- Kawarda
- Kawasaki
- Kawhye
- Kay're
- Kay Eaton
- Kay Leelun
- Kayak
- Kayaking
- Kayana Gundar
- Kaybok
- Kaybok (mirror)
- Kaye
- Kayla
- Kayla Iacovino
- Kaylar
- Kaylar (mirror)
- Kaylon
- Kaylor
- Kayolane
- Kayron
- Kayshon
- Kayshon, His Eyes Open
- Kaz
- Kaz'hera
- Kaz'ran
- Kaz's Squadron
- Kaz'veth
- Kaz (Klingon)
- Kaz (disambiguation)
- Kaz Daraan
- Kaza'kime
- Kazago
- Kazakhstan
- Kazar
- Kazar (Zarta)
- Kazar (disambiguation)
- Kazar (planet)
- Kazarite
- Kaze
- Kazek
- Kazh epetai Zulor
- Kaziri sutai Urussig
- Kazon
- Kazon-Halik
- Kazon-Hobii
- Kazon-Mostral
- Kazon-Nistrim
- Kazon-Ogla
- Kazon-Ogla mining colony
- Kazon-Oglamar
- Kazon-Pommar
- Kazon-Relora
- Kazon-Sara
- Kazon-Vistik
- Kazon Collective
- Kazon raider
- Kazren
- Kazu
- Kazuhiko Sano
- Kbarra sutai Pallara MacDonald
- Kbrex
- Kdam vestai Gura
- Ke
- Ke'el Tul
- Ke'eloveen
- Ke'lora
- Ke-tarya
- Ke-tarya-yatar
- Ke Hovath
- Ke Hovath (mirror)
- Ke Iniri
- Ke Kwanus
- Ke Kwanus V
- Keane
- Keane (disambiguation)
- Kearny Street
- Kearsarge
- Kearsarge (disambiguation)
- Keb
- Kebal
- Kebil Zi
- Kecar tai Fulmori
- Kecemen
- Kecho Lifaq the Shrewd
- Kedam
- Kedara tai Helvari
- Kedda
- Kedda tai Nivalli
- Kedgellan
- Kedion
- Kedjesa
- Keechvar Shipyard
- Keedera
- Keef
- Keekar yarok
- Keel
- Keelah
- Keelas
- Keelee-Kee
- Keeler Aerospace
- Keelhauling
- Keempo Expanse
- Keena
- Keena (mirror)
- Keena bread
- Keenan
- Keene (disambiguation)
- Keenser
- Keenser's Story
- Keenser (Kelvin timeline)
- Keensera
- Keenux
- Keep Earth Human League
- Keep Your Enemies Closer
- Keeper (disambiguation)
- Keeper of the Dishonored Dead
- Keer
- Keer (Klingon)
- Keer (disambiguation)
- Keesala
- Keet Daraan
- Keeten Planx
- Keethara
- Keethzarn
- Keets Black Hole
- Keev Anora
- Keevan
- Keeve Falor
- Keeyah
- Kefarian apple
- Kefford
- Keflovik
- Kegopi bush
- Kegren, son of Pers
- Kehlia
- Kehvam
- Kehvan Zydhek
- Kei/Yuri factor
- Kei System Patrol
- Keiisay
- Keiko Ishikawa (mirror)
- Keiko O'Brien
- Keiko Tamura
- Keim
- Keim (23rd century)
- Keim (24th century)