Ralph Roberts

Ralph Roberts may refer to:
 * Ralph J. Roberts (1920–2015), American businessman, co-founder of Comcast Communications
 * Ralph J. Roberts (geologist) (1911–2007), American geologist
 * Ralph Roberts (automotive designer), car designer who worked for the Chrysler Corporation
 * Ralph R. Roberts, Doorkeeper of the United States House of Representatives, c. 1944–1947
 * Ralph Arthur Roberts (1884–1940), German film actor
 * Ralph Roberts (sailor) (1935–2023), New Zealand sailor
 * Ralph Roberts (author), contributor to Alternate Presidents
 * Ralph Roberts, a fictional character from Stephen King's novel Insomnia