What is the name of the Hogwarts headmaster who mentors Harry Potter in J.K. Rowling’s novels?

Albus Dumbledore is the Hogwarts headmaster who mentors Harry Potter in J.K. Rowling’s novels.

Dumbledore is introduced as the headmaster of Hogwarts and becomes one of Harry’s principal guides. He recognizes the danger posed by Lord Voldemort and helps Harry understand the history behind the conflict, including Voldemort’s search for immortality.

The character is known for his intelligence, calm authority, and willingness to make difficult choices. Rowling gradually reveals that Dumbledore has a complicated past, including his youthful friendship with Gellert Grindelwald and later regret over their ambitions.

Dumbledore is not Hogwarts’ headmaster for the entire series. He is suspended during Harry’s fifth year and later dies during the sixth book. Minerva McGonagall and Severus Snape also serve as headmaster at different points.