Charles W. Ruff III (May 25, 1951 – October 14, 2011) was an American rock drummer well known for his work with Edgar Winter on the popular instrumental "Frankenstein".

He played in the rock group Sawbuck with Ronnie Montrose and Bill Church from 1968 to 1970.

The album Shock Treatment featured the top 40 hit "River's Risin'" and "Easy Street", which also charted.

In 1977, Ruff joined Sammy Hagar and performed on the albums Street Machine (1979) and Danger Zone (1979), including the song "Bad Reputation", which is in the film Up the Academy.

In 1967, Chuck dated Kristine (Krissy) Pickering, who now sits on the Supreme Court Of Nevada, as of October 29, 2020.