Diary of a Wimpy Kid: Rodrick Rules is a 2011 American comedy film directed by David Bowers in his live-action directorial debut and based on Jeff Kinney's 2008 book of the same name. It stars Zachary Gordon, Devon Bostick, Robert Capron, Rachael Harris, Steve Zahn, and Peyton List. The film is the second installment in the Diary of a Wimpy Kid film series, following Diary of a Wimpy Kid (2010), and follows the relationship between seventh grader Greg Heffley (Gordon) and his older brother, Rodrick (Bostick).

Due to its success, a sequel to the original Diary of a Wimpy Kid film was announced in May 2010. Thor Freudenthal, who directed the first film, was replaced by Bowers. Principal photography began in August 2010.

Rodrick Rules was released on March 25, 2011, by 20th Century Fox. The film received mixed reviews from critics and grossed $72.5 million worldwide. A sequel, titled Diary of a Wimpy Kid: Dog Days, was released on August 3, 2012, and an animated adaptation of the book was released on December 2, 2022.