- Idises
- Idit Kahayn
- Idix
- Idol
- Idol Threats
- Idran
- Idran Cluster
- Idran I
- Idran II
- Idran IV
- Idran Prime Shipyard
- Idran sector
- Idrani
- Idris
- Idris flower dust
- Idryll
- Idryllglicium
- Idun Asmund
- Iefnohuu
- Ies Bredell
- If
- If I Lose Thee...
- If Memory Serves
- If Wishes Were Horses
- Iffalian
- Ifnik
- Ifrea-3
- Ifukube
- Ifukube Veil
- Igaaren
- Igel
- Igen
- Igin
- Iglappa
- Ignasti
- Ignatin
- Ignor
- Igo sector
- Igor Knezevic
- Igor Kordey
- Igre
- Igrid
- Igrilan Kor
- Ih'tanu
- Ih'valla
- Ihazs
- Ihhliae
- Ihntya
- Iiefni'liss
- Iiefnidro
- Iiehdro
- Iiliy
- Ijarna
- Ijik
- Ikaal
- Ikalia
- Ikassa bark
- Ikasun system
- Ikat'ika
- Ike Clanton
- Ikkabar (planet)
- Ikkabar class
- Iklan
- Ikolis Expanse
- Ikreimi
- Ikri bun
- Il Daraan
- Ilaiyen Archipelago
- Ilaiyenai
- Ilam
- Ilan Ramon
- Ilana
- Ilanatava
- Ilani Tarn
- Ilar Prem
- Ilari
- Ilari (planet)
- Ilaria Traversi
- Ilec
- Ilecom
- Ileen Maisel
- Ilena
- Ilia
- Ilia (mirror)
- Ilia Memorial Spaceport
- Iliad
- Iliad (mirror)
- Iliana Ghemor
- Iliana Ghemor (mirror)
- Iliana Pa'Dan
- Ilidaria
- Ilidaria system
- Ilidarian
- Ilik Na
- Iliop
- Ilirra Deel
- Iljar
- Ilka
- Ill Wind
- Ill Wind, Part Four
- Ill Wind, Part One
- Ill Wind, Part Three
- Ill Wind, Part Two
- Ill Winds
- Illarh
- Illarhi
- Illia Sobel
- Illiana Prokova
- Illiara
- Illidge
- Illidium pew-36 explosive space modulator
- Illinois
- Illinois State University
- Illium-629
- Illo Mirren
- Illuminati
- Illuminating the City of Light
- Illumination of The Prodigal
- Illusion
- Illusion of Communication
- Illusory Humans
- Illusory people
- Illustrated Handbooks
- Illustrious
- Illustrious (disambiguation)
- Illya Galina
- Illyana Petrova
- Illyran
- Illyria
- Illyria system
- Illyrian
- Illyrian Cultural Academy
- Ilmatar
- Iloja of Prim
- Ilokar
- Ilon Tandro
- Ilona Daret
- Ilonori
- Ilox
- Ilrienh
- Ilrienh (animal)
- Ilsa J. Bick
- Ilsa Soong
- Ilthirin class
- Iltrasian
- Ilveth
- Ilvia
- Ilya
- Ilya Nikolaievich
- Ilyara
- Ilyria VI
- Im
- Im'fen
- Im (disambiguation)
- Im Daraan
- Imaga
- Image in the Sand
- Images
- Imaginary Friend
- Imagination (planet)
- Imani Eames
- Imarta
- Imaru
- Imbalance
- Imhotep system
- Immaculata
- Immaculata class
- Immalla Saneekad
- Immanuel Kant (mirror)
- Immea of Kaveran
- Immel
- Immelmann turn
- Immortal
- Immortal Coil
- Immortal Wounds
- Immortality
- Immortals
- Immune system
- Imolian butter
- Imotru
- Impeller
- Imper
- Imperator
- Imperator (disambiguation)
- Imperator class
- Imperator of Zeta-Atez
- Imperator of the Gorn Hegemony
- Imperator of the Gorn Hegemony (mirror)
- Imperfection
- Imperial Academy of Arts
- Imperial Adjuncts
- Imperial Advisor on Technology
- Imperial Arbitrator of the High Council
- Imperial Commandos
- Imperial Contacts Branch
- Imperial Corps of Engineers
- Imperial Court
- Imperial Fleet Command
- Imperial Forecasters
- Imperial Ground Forces
- Imperial Guard
- Imperial Hawk class
- Imperial Intelligence
- Imperial Intelligence (Terran Empire)
- Imperial Klingon Empire
- Imperial Klingon Star Academy
- Imperial Klingon States
- Imperial Legion
- Imperial Marines
- Imperial Museum
- Imperial Palace of the Dragon
- Imperial Parade Grounds
- Imperial Planets
- Imperial Plaza
- Imperial Romulan Institute of Research
- Imperial Romulan State
- Imperial Security
- Imperial Senate
- Imperial Senate of the Romulan Star Empire
- Imperial Senate of the Terran Empire
- Imperial Shrikes
- Imperial Solar Guard
- Imperial Starbase 47
- Imperial Starfleet
- Imperial Transporteer
- Imperial War College
- Imperial class
- Imperium class
- Import Protocol Office
- Impossibility of Reason
- Imposters
- Imprek University
- Imprimerie de Sorbonne Neue
- Imprinting
- Improbable Cause
- Improvisations on the Opal Sea: A Tale of Dubious Credibility
- Improvoline
- Impulse
- Impulse coil
- Impulse energy buffer
- Impulse engine
- Impulse flow regulator
- Impulse manifold
- Impulse pack
- Impulse reactor
- Impulse velocity projectile
- Imra Ardeen
- Imra Ardeen-Ranzz
- Imra Ardeen (disambiguation)
- Imrena
- Imri Keros
- Imutta
- Imvek
- Imveth
- Imvor
- Imzadi
- Imzadi (novel)
- Imzadi Forever
- Imzeren
- In'hhui'lasendt
- In'taq
- In-Yar
- In-system courier
- In Memory Yet Green...
- In Memory of the Fallen, a Tribute to the Tragedy at Grub
- In Purgatory's Shadow
- In Shadows
- In Tempest's Wake
- In Theory
- In Thy Image
- In Vino Veritas
- In a Mirror, Darkly
- In a Mirror, Darkly (CCG)
- In the Cards
- In the Cradle of Vexilon
- In the Flesh
- In the Hands of the Prophets
- In the Heart of Chaos
- In the Maze
- In the Name of Honor
- In the Pale Moonlight
- In the Presence of My Enemies
- In the Queue
- In the Shadow of Cestus
- In the Sleep of Death, What Dreams May Come
- Ina Mar
- Inaara
- Inalienable Rights
- Inamuri
- Inaprovaline
- Inar
- Inari
- Inari system
- Inartha Dor
- Inception
- Incident at Arbuk
- Incipient nova
- Incredible Tales of Scientific Wonder
- Incubation
- Incursion (STO)
- Incursion class
- Indalo Station
- Indarax
- Independence
- Independence (disambiguation)
- Independence Day
- Independent Nation of Borg
- Indi
- India
- Indian National calendar
- Indian Sherman (23rd century)
- Indian Sherman (24th century)
- Indiana
- Indiana (disambiguation)
- Indiana Jones
- Indiana State University
- Indiana University
- Indianapolis
- Indianapolis (disambiguation)
- Indign
- Indigo
- Indigo sunsearcher
- Indika
- Indira
- Indira (disambiguation)
- Indira Bhutto
- Indira City
- Indira Gandhi
- Indiscretion
- Indish
- Indish III
- Indistinguishable from Magic
- Indium
- Indizar
- Indomitable
- Indomitable (disambiguation)
- Indomitable class
- Indonesia
- Indonesian Space Agency
- Indor
- Indra IV
- Indray Karza
- Indri
- Indri VIII
- Inducer