Richard Stuart Linklater (; born July 30, 1960) is an American film director, producer, and screenwriter. He is known for films that revolve mainly around suburban culture and the effects of the passage of time. His films include the comedies Slacker (1990) and Dazed and Confused (1993); the Before trilogy of romance films, Before Sunrise (1995), Before Sunset (2004), and Before Midnight (2013); the music-themed comedy School of Rock (2003); the adult animated films Waking Life (2001), A Scanner Darkly (2006), and Apollo 10 1⁄2: A Space Age Childhood (2022); the coming-of-age drama Boyhood (2014); and the comedy film Everybody Wants Some!! (2016).

Linklater is known to have a distinct style and method of filmmaking. Many of his films are noted for their loosely structured narrative. The Before trilogy and Boyhood both feature the same actors filmed over an extended period of years. He has received several Academy Award nominations and won the Silver Bear for Best Director at the Berlin International Film Festival for his work on Before Sunrise. He also won a Golden Globe Award for directing Boyhood. In 2015, Linklater was included on the annual Time 100 list of the most influential people in the world.