Legend has it that Santa Claus was Saint Nicholas, a fourth-century Greek bishop and gift-giver of Myra, while others maintain he is the pagan god Woden. However one r redditor named TheSortingSombrero has come out with a theory that Santa could in fact be a wizard in the Harry Potter world. And he has given some pretty sound reasoning. For example, one of the biggest controversies about Santa in the Muggle world is how such a well-rounded guy can slip in through the chimney. The answer? Floo Powder. This also answers the age-old question of how he gets into homes that don't have chimneys: he probably just apparates.And if someone accidentally sees him, a simple Obliviate charm will sort that right out. Or perhaps he's also got an Invisibility Cloak.The other big question mark around Santa is: how does he manage to deliver all of those presents in just one night? Well, obviously, he uses a Time-Turner. And how does he fit all of those presents into one big bag? Well, by using an Undetectable Extension Charm of course.
He presumably has a magical flying carriage like the one used by Beauxbatons.There's even some speculation that perhaps Rudolph is a stag Patronus like Harry's, which Santa uses to ward off Dementors trying to steal all of the happiness of the world on the most magical of nights.
All of the elves that make those toys are clearly House Elves. Now, if he lives in the North Pole in a magical factory where no one can find him, it's possible it's been made unplottable via magical protection spells like Hogwarts. However, there is a more sinister theory: "Maybe he broke Clause 73 of the International Statue of Wizarding Secrecy by performing magic so openly for millions of muggles. So he has to hide on the North Pole, which is technically in international waters."
