Robert Platt may refer to:
Robert Platt, Baron Platt (1900–1978), British physician Robert Platt (canoeist) (1952–2014), French slalom canoeist Robert Platt (philanthropist) (1802–1882), English cotton manufacturer and philanthropist Robert Paus Platt (1905–1946), British diplomat Bob Platt (born 1932), English cricketer Robert Platt Jr., American robotics researcher