Underbite (One Step Changer) - Decepticon
Underbite (Tiny Titans) - Decepticon
Underbite (Clash of the Transformers) - Decepticon
Undermine - Decepticon
Undertow - Decepticon
Unicron - Decepticon
Unicron (United) - Universal Dominator

Vanquish - Decepticon Aerial Counterattack
Vehicon (First Edition) - Decepticon
Vehicon (Cyberverse Legion) - Decepticon
Vehicon - Decepticon
Vehicon (v1) (Kre-O) - Decepticon
Vehicon (v2) (Kre-O) - Decepticon
Vehicon (v3) (Kre-O) - Decepticon
Vehicon (Microchanger) - Decepticon
Vehicon (Kre-O Age of Extinction) - Decepticon
Vehicon (Age of Extinction) - Decepticon
Vehicon (Power Battlers) - Decepticon
Venin - Decepticon
Venom - Decepticon Psychological Warfare
Victory Leo - Destron Armored Knight
Victory Saber - Destron Supreme Commander
Viewfinder - Decepticon Reconnaissance
Viper - Decepticon
Virulent Clone - Decepticon Shock Troop
Vorter - Destron
Vortex - Decepticon Interrogation
Vortex (Generation 2) - Decepticon Interrogation
Vortex (Universe Classics 2.0) - Decepticon Combaticons Interrogator
Vortex (Combiner Wars) - Decepticon
Vortex (Combiner Wars Generation 2) - Decepticon
Vortex (Movie) - Decepticon Combaticons Interrogator
Vortex (Dark of the Moon) - Decepticon
Vortex (Fall of Cybertron) - Decepticon
Vortex (Platinum Edition) - Decepticon
Vortex (Kre-O) - Decepticon
Vortex (Kre-O Micro-Changer) - Decepticon

Waspinator (Generations Legends) - Decepticon
Waspinator - Decepticon Mutant Madman
Waspinator (Kre-O) - Decepticon/Predacon
Weirdwolf - Decepticon Tracker
Weirdwolf (Botcon) - Decepticon Tracker
Wheeljack - Decepticon
Whisper - Decepticon Espionage
Wideload - Decepticon
Wideload (Classics) - Decepticon
Wildfly - Decepticon Aerial Assault
Wildrider - Decepticon Terrorist
Wildrider (Animated) - Decepticon Pyrotechnics Director
Wind Sheer - Decepticon Jet
Wind Sheer (Transformers: Universe) - Decepticon
Windburn - Decepticon
Windrazor - Decepticon Leader
Windrazor (Kre-O) - Decepticon
Windsweeper - Decepticon Air Defense
Wing Stun - Destron Inspector
Wingspan - Decepticon Data Processor
Wingspan Hawk - Decepticon
Wire Tap V20 - Decepticon
Wolfwire - Decepticon
Wreckage (Movie) - Decepticon
Wreckerhook - Destron Technology Officer
Wreckloose - Decepticon
Wreckloose (Movie) - Decepticon

X-Gunner - Destron Aerial Gunner

Yokuryu - Destron Light-Speed Soldier

Zaptrap - Destron Hunter-Seeker
Zoom Out 25X - Decepticon