Ruth Davis or Ruth Davies may refer to:
Bette Davis (1908–1989), American actress née Ruth Davis Ruth A. Davis (1943–2025), American diplomat Ruth Ann Davis (1936–2009), American educator and academic Ruth Davis (1926–1970), American gospel singer with The Davis Sisters Ruth E. Davis, American computer scientist Ruth M. Davis (1928–2012), American computer scientist and civil servant Ruth Davies (born 1965), English actress known professionally as Rudi Davies Ruth Davis (basketball) (born 1994), Canadian basketball player (née Ruth Hamblin)