Santa Claus is a mythical entity associated with presents and elves.
When Kai stated that he was a ninja, a Police Officer jokingly said he was Santa Claus.
In LEGO Battles: Ninjago (non-canon)
Santa is a playable character in the game for the DS. He could be unlocked by playing the game on days near and on Christmas (December 12 to 25). He is a ranged attacker who throws presents at enemy attackers. In his first upgrade he rides atop a horse and in his second upgrade he gains two elf units and loses his horse.
- LEGO Battles: Ninjago (non-canon)
- He appears to be based on the previously-existing LEGO Santa Claus minifigure, specifically the version that debuted in 1998.
- Santa was first mentioned in the TV show in "Can of Worms" when Kai mistakenly took Samurai X as Santa while under the influence of Venomari venom. Santa was mentioned again in "Child's Play" when a Police Officer jokingly said he was Santa Claus.