Cyril Williams may refer to:
Cyril Williams (footballer) (1921–1980), English footballer Cyril Williams (athlete) (fl. 1934), Welsh sprinter Cyril Williams (rugby union) (1887–1978), English international rugby union player Cyril Herbert Williams (1908–1983), British colonial administrator Cyril G. Williams (1921–2004), Welsh religious scholar Cyril Williams, founder of traditional boat builders Williams and Parkinson Boat Builders