X-Men Villains

Comics
Abomination | Adversary | Ahab | A.I.M. | Apocalypse | Arcade | Archangel | Arkon | Avalanche | Azazel | Badoon | Bastion | Batroc | Belasco | Beyonder | Blastaar | Blood Brothers | Bolivar Trask | Blob | Brotherhood of Evil Mutants | Bullseye | Cameron Hodge | Cassandra Nova | Children of the Vault | Clan Akkaba | Count Nefaria | Crossbones | Dark Beast | Dark Phoenix | Dark X-Men | Deadpool | Doctor Doom | Doctor Octopus | Dracula | Emma Frost | Exodus | Fenris | Freedom Force | Friends of Humanity | Galactus | Graydon Creed | Hand | Hela | Hellfire Club | High Evolutionary | Holocaust | Horsemen of Apocalypse | HYDRA | Impossible Man | Juggernaut | Kang | Kid Omega | Kingpin | Krakoa | Kraven | Lady Deathstrike | Legion | Leper Queen | Lilith | Living Monolith | Lizard | Loki | Madelyne Pryor | Magneto | Magus | Mandarin | Marrow | Masters of Evil | Master Mold | Mesmero | Mikhail Rasputin | Mister Jip | Mister Sinister | Mojo | Mole Man | Morlocks | Moses Magnum | Mutant Response Division | Mystique | N'Astirh | Nanny | Nekra | Neo | Nimrod | Nitro | Obnoxio the Clown | Omega Gang | Omega Red | Onslaught | Orphan-Maker | Ozymandias | Pandemonia | Phalanx | Pilgrimm | Predator X | Proteus | Psycho-Man | Purifiers | Pyro | Quicksilver | Reavers | Red Ghost | Red Skull | Rhino | Right | Rogue | Sabretooth | Sat-Yr-9 | Sauron | Savage Land Mutates | Scarlet Witch | Sebastian Shaw | Selene Gallio | Sentinels | Serpent Society | Shadow King | Shadow Xavier | Shocker | Silver Sable | Silver Samurai | Simon Trask | Skrulls | Spiral | Stranger | Stryfe | Stephen Lang | Sublime | Sugarman | Super-Adaptoid | Supreme Intelligence | Toad | Trevor Fitzroy | Typhoid Mary | Tyrannus | Unus | Vulcan | Wendigo | William Stryker | Xemnu | Xorn

Movies
X-Men: Brotherhood of Mutants (Magneto, Mystique, Sabretooth & Toad) | Pyro
X2: William Stryker Jr. | Lady Deathstrike | Jason Stryker | Brotherhood of Mutants (Magneto, Mystique & Pyro)
X-Men: The Last Stand: Brotherhood of Mutants (Magneto, Dark Phoenix, Pyro, Juggernaut, Multiple Man & Mystique) | Omega Gang (Callisto, Psylocke, Quill, Arclight, Avalanche, Spike, Glob Herman & Phat) | Archangel
X-Men: First Class: Hellfire Club (Sebastian Shaw, Emma Frost, Azazel, Angel Salvadore & Riptide) | William Stryker Sr. | Magneto | Mystique
X-Men: Days of Future Past: Trask Industries (Bolivar Trask, William Stryker Jr. & Sentinels) | Magneto | Mystique | Toad | Horsemen of Apocalypse (Apocalypse)
X-Men: Apocalypse: Ashir En Sabah Nur/Horsemen of Apocalypse (Apocalypse, Magneto, Psylocke & Archangel) | Dark Phoenix | Mystique | William Stryker Jr. | Blob
Dark Phoenix: Dark Phoenix | D'Bari (Vuk & Jones) | Brotherhood of Mutants (Magneto & Selene Gallio) | Mystique