- Starks
- Staten Island Ronin
- Statesman
- Steel-Man
- Steel Man
- Steel Queer
- Steelman
- Storm Dragon
- Strobe
- Stryker
- Super (disambiguation)
- Super Animal
- Super Gay
- Super Luz SME
- Superbarrio
- Superbarrio Gómez
- Superhero
- Superheroes
- Superheroes (HBO Documentary)
- Superheroes (disambiguation)
- Superheroes Anonymous
- Supers-Citoyens
- Sweetie Pie
- Symbiote
- Synaps
- T.O. Ronin
- T.R.I.B.E.
- THE URBAN KNIGHT
- TRASHBREAKERS
- TSAF
- Tacubo
- Talon (disambiguation)
- Talon HellHawk
- Tamerlane
- Tanuz Mandrake W
- Tara viridian
- Team Justice, Inc
- Team justice
- Team justice inc
- Teletran-1
- Temper
- Templar
- Tennessee Memphis Initiative
- Terrifica
- Terrorvision
- Test:Guide
- Tha Force
- Thanatos
- The Alternates
- The Amazing
- The Astrals
- The Baroness
- The Beacon
- The Beam
- The Black Monday Society
- The Challengers
- The Community Heroes Initiative
- The Community Superheroes
- The Cremator
- The DoomWatch Patrol
- The Eye
- The Fox
- The Golden Don
- The Grim
- The Guardians
- The Handler
- The Heroes Alliance
- The Illuminated Life Foundation
- The Initiative Collective
- The Inspector
- The Katalysts
- The Knight
- The Komet
- The League of Urban Knights
- The Nightswatch
- The Outsiders
- The Paradox Core
- The Phantom-Knight
- The Phoenix Corporation
- The Potentate
- The Ray
- The Real Life Super Hero Project
- The Reverend
- The Roaming Eye of Doom
- The Shadows International
- The Thre3
- The Urban Knight
- The Variable
- The Vortex
- The Warden
- The Watchman
- The Widowster
- The Wraith
- The initiative
- The mariner
- Thoughtcrime
- Thread
- Thylacine
- Tinman
- ToDo
- Tomato Detective Tomatine
- Tony Dangerous
- Tothian
- Tracy Hudson
- Trash Hero OITA
- Travis leland
- Treesong
- Tribe
- Trillium Guards of Ontario
- Tsaf
- UKI London
- Uki central
- Uki liverpool
- Uki london
- Umbratica
- Underground Justice League Alliance
- United Earth Hopeforce
- United Kingdom/Central Initiative
- United Kingdom Initiative
- United Kingdom Initiative: Liverpool
- United Kingdom Initiative: London
- United Kingdom Initiative (disambiguation)
- Urban (disambiguation)
- Urban Alliance
- Urban Avenger
- Urban Knight
- Urban Knight (disambiguation)
- Urban Knights and Ladies
- Urban knight
- Valkaiser
- Variable
- Vector
- Venge
- Vigilante Spider
- Violet Valkyrie
- Violet Valkyrie (1)
- Violet Valkyrie (2)
- Violet Valkyrie I
- Viper
- Virginia Initiative
- Void
- Void (disambiguation)
- Von clause
- Voodoo
- Vortex
- Väktaren (Watchman)
- WAI
- Wall Creeper
- Warden
- Washington Initiative
- Wayne murdock
- Weaver
- Wedjat
- West Devil
- Westlake Drake
- Wheel Clamp Man
- White Baron
- Wight Knight
- Windy City Watchers
- Wolf Paradox
- World Superhero Registry
- Wrath
- X-Alt
- X-Faction
- XJL
- X Faction
- Xeno
- Xtreme Justice League
- Xtreme Justice League, North Carolina
- Xtreme Justice League: Inland Empire
- Xtreme Justice League: Mississippi Gulf Coast
- Xtreme Justice League: North Carolina
- Xtreme Justice League: North County
- Xtreme Justice League: Phoenix
- Yellow Barbarian
- Z
- Zeal
- Zero
- Zero (disambiguation)
- Zetaman
- Zimmer
- Zimmer barnes
- Zyklon B