Dyall is a surname. Notable people with this surname include:
Franklin Dyall (1870–1950), English actor Karl Dyall (born 1967), Swedish dancer, singer and actor Kenneth G. Dyall, chemist known for the Dyall Hamiltonian Mary Dyall (; 1890–1973), English actress Sharon Dyall (born 1962), Swedish singer, actress and voice actress Valentine Dyall (1908–1985), English actor and voice actor
See also Dyal