In the world of wizardry, Harry Potter was the ‘chosen one’ but there’s one thing that not many people know: the prophecy could’ve been referring to Neville Longbottom.
“The one with the power to vanquish the Dark Lord approaches… Born to those who have thrice defied him, born as the seventh month dies… and the Dark Lord will mark him as his equal, but he will have power the Dark Lord knows not… and either must die at the hand of the other for neither can live while the other survives… the one with the power to vanquish the Dark Lord will be born as the seventh month dies…”
Neville wasn’t marked as Voldemort’s equal but the rest of the prophecy fits Harry and him. They were both born at the end of July and both of their parents were either tortured or killed by unforgivable curses (using one of the three unforgivable curses would get you put in Azkaban) cast by Voldemort or his followers. You might notice that in Harry Potter and the Philosopher’s Stone (or Sorcerer’s Stone) the sorting hat finds great difficulty in deciding which house they should be put into.
After the Battle of the Ministry of Magic, Harry realises that it could have been Neville, when he asked Dumbledore he was reminded of the second half of the prophesy: “The dark lord will mark him as his equal,” which meant that it was Harry who was the chosen one.