Twin Peaks is an American television serial drama created by David Lynch and Mark Frost. The series follows the investigation, headed by Special Agent Dale Cooper (Kyle MacLachlan), of the brutal murder of a popular teenager and homecoming queen, Laura Palmer (Sheryl Lee). Twin Peaks pilot episode was first broadcast on April 8, 1990 on the ABC Network, which led to another seven episodes being produced, and a second season, which aired until June 10, 1991. The show's name came from its setting, a small fictional Washington town. Exteriors were primarily filmed in Snoqualmie and North Bend; most of the interior scenes were shot on standing sets in a San Fernando Valley warehouse.

Twin Peaks became one of 1990s' top-rated shows, a critical success both nationally and internationally. Reflecting its devoted cult fan base, the series became a part of popular culture, referenced in other television shows, commercials, comic books, a video game, films and song lyrics. Declining viewer ratings led to ABC's insistence that the identity of Laura's murderer be revealed midway through the second season, a ratings ploy which interfered with several other long-running story lines. In 1992, the series spawned a prequel, the film Twin Peaks: Fire Walk with Me, a commercial failure in America.

Twin Peaks currently airs sporadically, in weekday marathons, on NBC Universal's horror/suspense-themed cable channel Chiller. The entire series (except the pilot episode) is viewable on CBS.com to those who are within region. The show is now airing regularly on the A&E's Crime & Investigation Network.