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The Craziest Harry Potter Fan Theories That Could Be True

Updated April 30, 2021 706.6k votes 73.9k voters 6.8m views29 items

List RulesVote up the theories that are just so magical they might be onto something.

There’s nothing like a batch of Harry Potter fan theories straight out of the piping hot cauldron of the internet to make the day seem brighter. The Potter books and films are seemingly made for fan theories, with new ones popping up daily. Rowling’s (or should we call her Rita?) vibrant world is dissected all the time despite the fact that the first book, Harry Potter and the Sorcerer’s Stone, was published in 1997. Even Rowling enjoys Harry Potter universe theories. She particularly likes the one about Dumbledore being Death in the Deathly Hallows story of the Peverell brothers. She said, “It fits.”

But does the fan theory that Ginny slipped Harry a magical love roofie fit? Because for the longest time, it seemed like she was the only one carrying a torch, and Harry couldn’t have cared less. How about this one: Dumbledore is actually Ron? And George Weasley is Willy Wonka? Yep, there are some pretty wild, yet fun, Harry Potter theories out there.

There are quite a few strongly-held Harry Potter fan theories that make sense. Like how Draco Malfoy is a werewolf. He’s got that tortured thing going on. Is this the Dark Lord’s doing? Did Voldy have Fenrir take a chunk out of Malfoy because he failed to deliver the prophecy, and this was something that happened to Death Eater’s children when they messed up?

And with the addition of the upcoming Fantastic Beasts series, new theories have popped up. Is Credence Barebone Voldemort's dad? Is Percival Graves actually Gellert Grindelwald? Did Newt Scamander give Hagrid Aragog? So many theories sprouting up and will only grow as the five-film series rolls on. 

Which Harry Potter fan theory makes the most sense? Point your wand at the ones you think are most likely to be true and levitate them up to the top (with your votes, that is).

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  • 1

    Neville Longbottom Uses The Wrong Wand

    Photo: Harry Potter and the Deathly Hallows, Part 2 / Warner Bros.

    Because he chose his father's wand, Neville didn’t let the wand choose him. This explains the constant misfires, but it worked well enough because it was his dad’s. When Neville’s wand is broken at the Battle of the Department of Mysteries, he gets a new one at Ollivander’s. This time, the wand chose him and helped him become the leader of Dumbledore’s Army in his seventh year.

    Read more about Blogspot user Soggy Old Coot’s theory here.

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  • 2

    Did Hagrid Get Aragog From Newt Scamander?

    Photo: Harry Potter and the Half Blood Prince / Warner Bros.

    MuggleNet may have unearthed something pretty cool with this one. Aragog, the Acromantula, explains how he came to be with Hagrid in Harry Potter and the Chamber of Secrets: "I came to Hagrid from a distant land, in the pockets of a traveler." 

    Scamander ended up at Hogwarts after his travels across five continents to study, collect, and protect fantastic beasts. So it’s altogether possible that a younger Hagrid met a middle-aged Scamander at Hogwarts in the ‘40s.

    There's another connection (besides caring for misunderstood beasts of the world) between the two. Hagrid and Scamander were both expelled from Hogwarts, only to return as professors later. 

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  • 3

    Trelawney Was Right About Harry’s Birth Date

    Photo: Harry Potter and the Prisoner of Azkaban / Warner Bros.

    Even though Harry was born in July, Trelawney tells Harry he was born in midwinter.

    That’s because a part of Voldemort’s soul was inside Harry, and Tom Riddle was born on December 31, smack in the middle of the winter season.

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  • 4

    Crookshanks Used To Belong To Lily Potter

    Photo: Harry Potter and the Prisoner of Azkaban / Warner Bros.

    This one comes from Yedu Krishnan who says that when Hermione buys the cat at Magical Menagerie, the owner says they’ve had the cat for “quite some time.” Harry often wondered if their cat survived the attack by Voldemort when he was a baby.

    So when Crookshanks recognizes Scabbers/Wormtail and Sirius in their animagus forms, it’s a strong clue that Crookshanks was Harry’s family cat.

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