- William J. Clinton
- William Jarvin
- William Jefferies
- William John Wheeler
- William Larson
- William Leisner
- William Mairson
- William Masefield
- William Masters
- William McKenzie
- William Mendel
- William Parkinson
- William Perinal
- William R. Forstchen
- William Ross
- William Rotsler
- William Shakespeare
- William Shakespeare (mirror)
- William Shatner
- William Smillie
- William Smith
- William Smythe
- William T. Riker
- William T. Riker (1ST)
- William T. Riker (alternates)
- William T. Riker (mirror)
- William T. Sherman
- William Terrens
- William Theiss Raymond
- William Trainer
- William Wallace
- William and Mary College
- William of Occam
- Williams
- Williams (Captain)
- Williams (Crewman)
- Williams (Ensign)
- Williams (Heisenberg)
- Williams (USS Enterprise)
- Williams Eddie
- Willie Hawkins
- Willie Mays
- Willie McCool
- Willingham
- Willis
- Willis (Chief petty officer)
- Willis (Weapons Officer)
- Wills
- Wilma Meier
- Wilmut Party
- Wilson
- Wilson-Chapel serum
- Wilson (Commander)
- Wilson (Doctor)
- Wilson (USS Enterprise)
- Wilson (dictator)
- Wilson (engineer)
- Wilson Energies Limited
- Wilson Granger
- Wilson Vanderberg
- Win lorin Ren
- Winath
- Winchester
- Winchester (disambiguation)
- Wind-Father
- Wind-rider
- Winding Path to-Srallansre
- Windjammer
- Window of Dreams
- Windows on a Lost World
- Winds of Change
- Windsor
- Windsqueezer
- Windsurfing
- Windu sector
- Wine
- Wineworm
- Wineworm blood
- Wing-slug
- Wingate
- Wingboat
- Winged Dreamers' planet
- Winged kurgo
- Wings of Justice class
- Wingsuit
- Winim Teekat
- Wink of an Eye
- Winn Adami
- Winn Adami (mirror)
- Winn Mara
- Winona Kirk
- Winona Kirk (Kelvin timeline)
- Winona Riken
- Winser Ellevet
- Winslow (disambiguation)
- Winston Churchill
- Winston Driveon
- Winston Kyle (mirror)
- Winston Memorial Art Gallery
- Winter (shuttlecraft)
- Winter Palace
- Winter Solstice
- Winter Wonderland
- Winter Wonderland chef
- Winters
- Wintik Barr
- Wir'tek
- Wire smelt
- Wired
- Wis'noki
- Wisconsin
- Wisdom
- Wisdom Mask
- Wise Ones
- Wisest Tribble
- Wistan gagh
- Wistod Emen
- Witch
- Witch (shuttle)
- Witenagemot of Kropasar
- With Friends Like These...
- With Our Last Breath
- Withdrawal
- Withers
- Within The Briars
- Witmer
- Witness
- Witness (CA-12)
- Witness for the Defense
- Witten
- Wittering
- Wixiban
- Wiyisel
- WizKids
- Wizard
- Wizard class
- Wo'Din
- Woban
- Wobine
- Wodeb
- Woden
- Woden (disambiguation)
- Woden (ship)
- Woden sector
- Wodsworth
- Wog
- Wohoken
- Wokapa
- Woki Alpha
- Woki Alpha I
- Woki Beta
- Woki Beta I
- Woki Beta II
- Woki Beta III
- Woki Beta IV
- Woki Beta V
- Woki Beta VI
- Woki Beta VII
- Woki Beta VIII
- Woki Cluster
- Woki Gamma
- Wokkle
- Wokkle III
- Wokky intestine
- Wokonski
- Wol
- Wolf
- Wolf-Rayet star
- Wolf (disambiguation)
- Wolf 1246
- Wolf 1246 planet
- Wolf 346
- Wolf 357
- Wolf 359
- Wolf 359 I
- Wolf 359 II
- Wolf 359 III
- Wolf 359 IV
- Wolf 359 Memorial Station
- Wolf 359 V
- Wolf 359 VI
- Wolf 359 VIa
- Wolf 424
- Wolf 515
- Wolf 672
- Wolf 698
- Wolf Oligarchy
- Wolf at the Door
- Wolf in the Fold
- Wolf on the Prowl
- Wolfe
- Wolfe (Admiral)
- Wolfe (Engineer)
- Wolff
- Wolfgang Amadeus Mozart
- Wollowan
- Wolm
- Wolowitz
- Wolverine (disambiguation)
- Womack
- Womata
- Womb of Fire
- Womb rental agreement
- Women of Star Trek
- Wompat
- Wonder Bar
- Wonderlands
- Wong
- Wong (security)
- Wood
- Wood (disambiguation)
- Woodlawn
- Woodlawn Cemetery
- Woodmansey
- Woodrow Wilson
- Woodstock
- Wool
- Wooldridge
- Woolwonga
- Wooly slug
- Woomera
- Wooten
- Wophan Square
- Woqutlh
- Woqutlh I
- Woqutlh II
- Woqutlh III
- Worene
- Worf
- Worf's First Adventure
- Worf's bird-of-prey
- Worf's family
- Worf, father of Mogh
- Worf (1ST)
- Worf (alternates)
- Worf (mirror)
- Worf Special
- Worhundelja
- Worin
- Work Bug
- Work Is Hard
- Work Worth Doing
- Workbee
- Workday
- Workforce
- Working Miracles
- Working Vacation
- Working the Crowd
- Workpod
- World's End
- World Above
- World Against Time
- World Below
- World Beyond Zero
- World Council of Birsiba
- World Court
- World Distributors
- World Heart
- World Human Church
- World Medical Organization
- World Peaceways
- World Razer
- World Razer class
- World Series
- World Trade Center
- World War I
- World War II
- World War III
- World War III Memorial
- World Without End
- World of Strangers
- Worldfall
- Worldmind
- Worldnet
- Worlds
- Worlds Apart
- Worlds Apart (disambiguation)
- Worlds Collide
- Worlds Within Worlds
- Worlds in Collision
- Worlds of Star Trek: Deep Space Nine
- Worlds of Star Trek: Deep Space Nine, Volume One
- Worlds of Star Trek: Deep Space Nine, Volume Three
- Worlds of Star Trek: Deep Space Nine, Volume Two
- Worldsinger
- Wormhole
- Wormhole relay station
- Wormwine
- Woros Keyth
- Worsley
- Worst Case Scenario
- Wortham unit
- Worvan
- Wotan
- Wounds
- Wounds (compilation)
- Wovogh
- Woz
- Woz VII
- Wraith
- Wraith class
- Wrappage
- Wrath of Gems
- Wrath of the Prophets
- Wrath of the Prophets (plague)
- Wren (transport)
- Wrench
- Wrenn
- Wrenn (Ensign)
- Wrestling
- Wright
- Wright-Patterson Air Force Base
- Wright (engineer)
- Wright Flyer
- Wrightwell
- Wrigley
- Wrigley's Pleasure Planet
- Wrigley Field
- Writ of Accountability
- Write Off
- Wrongs Darker Than Death or Night
- Wruum's species
- Wu
- Wu (Doctor)
- Wu (Ensign)
- Wu (mirror Ensign)
- Wule
- Wulfek
- Wulkk
- Wumpar sector
- Wurna Minor
- Wusekl
- Wuspsak
- Wwafida
- Wyanti
- Wyanti I
- Wyanti II
- Wyanti III
- Wyanti planetoid
- Wyath
- Wyatt
- Wyatt (USS Defiant)
- Wyatt (USS Enterprise)
- Wyatt Earp
- Wyatt Miller