Arthur Howard Williams (born 11 July 1950) is a Welsh chess FIDE Master (FM), British Chess Championship medalist (1974), eighteen-times Welsh Chess Championship winner (1968, 1971, 1972, 1974, 1975, 1977, 1978, 1980, 1981, 1982, 1983, 1986, 1987, 1988, 1991, 1993, 1994, 2011).