Diamond Dave is the sixth studio album by David Lee Roth, former lead vocalist of Van Halen. It was released in 2003 on Magna Carta Records.

David Lee Roth is an American rock singer. Known for his wild and energetic stage persona, he was the lead vocalist of the hard rock band Van Halen for three stints: from 1974 to 1985, during 1996, and from 2006 to when they disbanded in 2020. He has also had a successful solo career, releasing numerous RIAA-certified Gold and Platinum albums. After more than two decades apart, Roth re-joined Van Halen in 2006 for a North American tour that became the highest-grossing in the band's history, and one of the highest-grossing of that year. In 2007, he was inducted into the Rock and Roll Hall of Fame as a member of Van Halen.