Which Harry Potter novel was the last written by J.K. Rowling?

Harry Potter and the Deathly Hallows was the last Harry Potter novel written by J.K. Rowling.

It is the seventh and final book in the main Harry Potter series. Bloomsbury published it in the United Kingdom on 21 July 2007, completing the narrative that began with Harry Potter and the Philosopher’s Stone in 1997. The plot follows Harry, Ron, and Hermione as they search for Horcruxes and confront Voldemort.

The title refers to three legendary magical objects: the Elder Wand, the Resurrection Stone, and the Invisibility Cloak. These objects connect the book’s fantasy mythology with its themes of mortality, power, and the choices people make.

The book was followed by additional Wizarding World works and adaptations, but it remains the final main Harry Potter novel written by Rowling. Harry Potter and the Cursed Child is a later stage play script, not the seventh novel.