R&G (Rhythm & Gangsta): The Masterpiece is the seventh studio album by American rapper Snoop Dogg. It was released on November 16, 2004, by Doggystyle Records, making its first on Star Trak Entertainment and Geffen Records. Recording sessions took place from November 2003 to September 2004 in each of several recording studios. The album's production was handled from The Neptunes, The Alchemist, Lil Jon, Hi-Tek, Warryn Campbell, and L.T. Hutton, among others.

The album debuted at number six on the US Billboard 200, selling 225,000 copies in its first week. Upon its release, R&G (Rhythm & Gangsta): The Masterpiece received generally positive reviews from music critics.