Iconic Batman Villains:
* The Joker: Arguably Batman's most famous nemesis.
* Harley Quinn: Joker's loyal partner-in-crime.
* The Penguin: A crime lord who often uses umbrellas and penguin-themed gadgets.
* Catwoman: A master thief with a love/hate relationship with Batman.
* Two-Face: A former district attorney driven to madness and obsessed with duality.
* The Riddler: A brilliant criminal who leaves riddles for Batman to solve.
* Poison Ivy: A botanist who uses plant-based toxins for her crimes.
* Mr. Freeze: A scientist obsessed with his frozen wife and cryogenic technology.
* Scarecrow: A psychologist who uses fear toxin to terrorize Gotham.
* Bane: A supervillain known for his immense strength and physical power.
Other Notable Villains:
* The Mad Hatter: A villain obsessed with hats and mind control.
* Killer Croc: A reptilian humanoid criminal who lives in the sewers.
* Clayface: A shapeshifting villain who can mimic any person or object.
* Ra's al Ghul: A master strategist and leader of the League of Shadows.
* The Joker's Daughter: A villain who is the daughter of the Joker.
* The Ventriloquist: A criminal who controls a dummy named Scarface.
* Man-Bat: A scientist who accidentally transforms into a bat-like creature.
* Solomon Grundy: A powerful undead creature created by the Joker.
* The Penguin's henchmen: Numerous penguin-themed goons who help the Penguin.
Beyond These:
* Lego Batman movies and games often introduce original villains or variations on classic characters.
* The "Lego Batman" franchise features villains from other DC Comics stories, such as the Superman villains Lex Luthor and Brainiac.
This list is not exhaustive, but it captures many of the most recognizable and prominent villains in the Lego Batman universe.