Walter Arnold may refer to:
Walter Arnold (GC) (1906–1988), Royal Air Force airman and recipient of the George Cross Walter Arnold (German sculptor) (1909–1979) Walter Arnold (footballer) (1876–1955), English footballer Walter S. Arnold, American sculptor and stone carver Walt Arnold (Walter Henslee Arnold; born 1958), American football player
See also Walter Yarnold (1893–1978), English cricketer