•
Harold Williams (linguist) (1876–1928), New Zealand journalist and polyglot •
Harold Herbert Williams (1880–1964), English scholar, expert on the works of Jonathan Swift •
Harold P. Williams (1882–1963), American attorney and judge •
Harold Williams (British Army officer) (1897–1971), British Army officer •
Harold Williams (footballer) (1924–2014), Welsh international footballer •
Harold M. Williams (1928–2017), chairman of U.S. Securities and Exchange Commission, 1977–1981 •
Harold Williams (geologist) (1934–2010), Canadian geologist •
Harold Williams (cricketer) (born 1959), Grenadian cricketer •
J. Harold Williams (1888–1981), American professor and educator ==See also==