David B. Rutledge (born 1952) is the Kiyo and Eiko Tomiyasu Professor (em.) of Engineering and former chair of the Division of Engineering and Applied Science at the California Institute of Technology (Caltech), United States.[1] His earlier work on microwave circuits has been important for various advances in wireless communications and has been useful for applications such as radar, remote sensing, and satellite broadcasting. He also covers research in estimating fossil-fuel supplies, and the implications for alternative energy sources and climate change.[2]