"Frontier Psychiatrist" is a song by Australian electronic dance music group The Avalanches. The song was produced by group members Robbie Chater and Darren Seltmann, under their production alias Bobbydazzler, for the group's debut album Since I Left You. The song is built around many sampled elements, much like other tracks from its parent album, including prominent vocal samples of comedy duo Wayne and Shuster and an orchestral background sourced from an Enoch Light version of the composition "My Way of Life" (1968).
It was released on 21 August 2000 as the second single from Since I Left You. Upon release, it peaked at number 18 on the UK Singles Chart and number 49 in the group's native Australia, becoming their first single to enjoy commercial success. "Frontier Psychiatrist" was well received by music critics, who praised the Avalanches' utilization of samples in making the song.