Diary of a Wimpy Kid: The Long Haul is a 2017 American road comedy movie written and directed by David Bowers. It serves as a standalone sequel to Diary of a Wimpy Kid: Dog Days and the fourth installment in the Diary of a Wimpy Kid movie series and the final live-action movie in the franchise. It was based on the ninth book of the same name, with elements of the seventh, eighth and tenth books in the series and was cowritten by the books' author, Jeff Kinney.

Diary of a Wimpy Kid: The Long Haul was the final Diary of a Wimpy Kid movie to be released by 20th Century Fox before Disney's ownership of the franchise.

• Jason Drucker as Greg Heffley, Susan and Frank's son
• Alicia Silverstone as Susan Heffley, Greg's mother
• Tom Everett Scott as Frank Heffley, Greg's father
• Charlie Wright as Rodrick Heffley, Greg's older brother
• Owen Asztalos as Rowley Jefferson, Greg's best friend
• Dylan and Wyatt Walters as Manny Heffley, Greg's younger brother
• Joshua Hoover as Mac Digby
• Christopher A. Coppola as Mr. Beardo
• Kimberli Lincoln as Mrs. Beardo
• Mira Silverman as Brandi Beardo
• Mimi Gould as Meemaw
• Nathaniel Dickson as Brandon Beardo
• Jake Strerner as Brent Beardo