The Hogwarts Express is the train, a scarlet steam locomotive, that takes students to Hogwarts School of Witchcraft and Wizardry in J. K. Rowling's Harry Potter series. It leaves from Platform 9 and 3/4 in King's Cross Station, London, at the beginning of every school year and after holidays and arrives at Hogsmeade Station near Hogwarts, where first-years are met by gamekeeper Hagrid.

On the Hogwarts Express, there are several passenger compartments for all the students. There is also a witch with a food cart who comes around selling such culinary delights as chocolate frogs and pumpkin juice for hungry students.

The Hogwarts Express is where Harry made his first friends on his way to Hogwarts for the first time: Ron Weasley, Hermione Granger, and Neville Longbottom, among others. It's also where he first stood up against the sniveling twit Draco Malfoy. The Hogwarts Express has been the scene of other important happenings in the students' lives, such as Harry's first encounter with a Dementor and some of Ron's heated exchanges with Malfoy and his crew.