Internet Villains refer to antagonists that are featured in various media all across the internet that have made them very popular and/or a meme.

This can include:

• Crude parodies of beloved pop culture characters, such as Fluttershy in HotDiggedyDemon's PONY.Mov series, and Dolan, a poorly drawn version of Donald Duck.
• Villainous characters who are hailed as internet memes, like Gaston, Mr. Lickboot, Slender Man, and Senator Armstrong.
• Characters who represent various forms of Creepypasta, like Jeff the Killer, Laughing Jack, and Ben Drowned.
• Antagonists who are featured in shows prominently viewable online, such as Roman Torchwick, Tony the Talking Clock, Mr. Tezuka, and Dr. Insano.