Psych is an American detective comedy-drama television series created by Steve Franks for USA Network. The series stars James Roday Rodriguez as Shawn Spencer, a young crime consultant for the Santa Barbara Police Department whose "heightened observational skills" and impressive eidetic memory allow him to convince people that he solves cases with psychic abilities. The program also stars Dulé Hill as Shawn's intelligent best friend and reluctant partner Burton "Gus" Guster, as well as Corbin Bernsen as Shawn's father, Henry, a former detective with the Santa Barbara Police Department.

Psych premiered on July 7, 2006, following the fifth-season premiere of Monk, and continued to be paired with the series until Monk's conclusion on December 4, 2009. During the second season, an animated segment titled "The Big Adventures of Little Shawn and Gus" was added to the series. Psych was the highest-rated US basic cable television premiere of 2006. USA Network renewed the series for an eighth season on December 19, 2012, to include eight episodes, and ordered two more episodes on June 25, 2013, bringing the episode order to ten. On February 5, 2014, USA Network confirmed that the eighth season of Psych would be its last, with the series finale airing on March 26, 2014.

Psych: The Movie, a two-hour TV film, aired on USA Network on December 7, 2017. Franks' hope is to make five more Psych movies, following Psych: The Movie. On February 14, 2019, it was announced Psych: The Movie 2 was greenlit and all the main cast would return for the TV film, which was set to premiere in late 2019, but the premiere thereof was subsequently delayed to 2020, with the film renamed Psych 2: Lassie Come Home. The film was released on NBCUniversal's streaming service, Peacock, July 15, 2020, the day the service officially launched. On May 13, 2021, Peacock announced a third film, Psych 3: This Is Gus, which premiered on November 18, 2021.