Percy Jackson & the Olympians: The Lightning Thief (also known as Percy Jackson and the Lightning Thief) is a 2010 fantasy film directed by Chris Columbus and written by Craig Titley, based on the 2005 novel The Lightning Thief by Rick Riordan. The film is the first installment in the Percy Jackson film series. It stars Logan Lerman as Percy Jackson alongside an ensemble cast that includes Brandon T. Jackson, Alexandra Daddario, Sean Bean, Pierce Brosnan, Steve Coogan, Rosario Dawson, Catherine Keener, Kevin McKidd, Joe Pantoliano, and Uma Thurman.

In 2004 20th Century Fox acquired the film rights to the book series. In 2007 Chris Columbus was hired to direct. Filming began April 2009 in Vancouver. Some shots were filmed in Tennessee and Las Vegas, and some exterior scenes were shot in New York.

Percy Jackson & the Olympians: The Lightning Thief was released theatrically in the United States on February 12, 2010, by 20th Century Fox. The film received mixed reviews from critics, with criticism for the poor grasp of its source material and its script, but praise for Lerman and Jackson's performances, visual effects, and action sequences. The film grossed $226.4 million worldwide against a production budget of $95 million. It was released on June 29, 2010 on DVD and Blu-ray Disc. A video game based on the film was released for Nintendo DS on February 11, 2010. A sequel, Percy Jackson: Sea of Monsters, was released on August 7, 2013.