For almost his entire life, Harry Potter has been a Horcrux. This is a magical object created by a wizard or witch to store a part of their soul, allowing them to remain immortal. This explains Harry’s ability to speak Parseltongue — the magical ability to understand and talk to snakes — an ability Voldemort has as a descendant of Salazar Slytherin.
The concept of a Horcrux was first introduced in J.K. Rowling’s Harry Potter series. In the books, Voldemort created seven Horcruxes in an attempt to become immortal. He used pieces of his soul to create these objects, which were hidden in various places. One of these Horcruxes was Harry Potter himself.
Voldemort created Harry as a Horcrux when he tried to kill him as a baby. When Voldemort’s Killing Curse rebounded, it split his soul into seven pieces and one of those pieces was placed inside Harry. This is why Harry was able to survive the Killing Curse, as well as why he was able to speak Parseltongue.
Harry was unaware of his status as a Horcrux until the events of the seventh book, Harry Potter and the Deathly Hallows. In this book, Voldemort reveals to Harry that he is a Horcrux and that he must be destroyed in order for Voldemort to be defeated. Harry eventually manages to destroy the Horcrux within himself, thus ending Voldemort’s reign of terror.
So, is Harry a Horcrux? The answer is yes. He was created as a Horcrux by Voldemort in an attempt to become immortal, and he was the only one of Voldemort’s Horcruxes to survive. Harry was able to survive the Killing Curse and speak Parseltongue due to the piece of Voldemort’s soul inside him, and he was eventually able to destroy the Horcrux within himself, thus ending Voldemort’s reign of terror.