John Siomos (July 30, 1947 – January 16, 2004) was an American rock drummer who performed with Todd Rundgren, Mitch Ryder and the Detroit Wheels, Rick Derringer, Carly Simon, Mark "Moogy" Klingman, Buzzy Linhart and Frampton's Camel. Born in Chicago, Illinois, United States, he died in Brooklyn, New York.