"Relaxin' At Camarillo" is an original blues composition by Charlie Parker, written in 1947 and inspired by his six-month stay at Camarillo State Hospital in Ventura County, California. Parker had been committed to the facility following a 1946 breakdown involving substance abuse, a hotel fire, and subsequent arrest. The tune was recorded on February 26, 1947, in Hollywood for Dial Records, with a stellar ensemble including Howard McGhee on trumpet, Wardell Gray on tenor saxophone, Dodo Marmarosa on piano, Barney Kessel on guitar, Red Callender on bass, and Don Lamond on drums. The composition is a driving bebop blues featuring an energetic, swinging melody built on Parker's characteristic angular lines, chromaticism, and rhythmic syncopation over the twelve-bar blues form. Its brisk pace and lively character make it a demanding yet rewarding vehicle for improvisation. The tune holds a notable place in Parker's Dial Records output, representing his renewed vitality after hospitalization. George Russell later arranged the piece for Dizzy Gillespie's big band, incorporating Afro-Cuban elements, shifting keys, and polyrhythmic textures in performances at Carnegie Hall and Cornell University in late 1947, though that arrangement was never commercially recorded. "Relaxin' At Camarillo" has become a recognized jazz standard in the bebop repertoire, widely included in lead sheet collections and frequently performed in jam sessions and educational settings.