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

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

Bloomsbury released the book in the United Kingdom on 21 July 2007. It concludes the seven-book story as Harry, Ron and Hermione leave Hogwarts to search for the objects linked to Voldemort’s power. The novel resolves the central conflict and reveals the significance of the Deathly Hallows.

The book broke sales records, selling millions of copies shortly after release. Its conclusion was adapted into two films, Harry Potter and the Deathly Hallows – Part 1 and Part 2, released in 2010 and 2011.

The title can be confused with Harry Potter and the Half-Blood Prince, which was the sixth novel and appeared in 2005. The Deathly Hallows is the seventh and final volume of the main series.