John H. Williams

John H. Williams may refer to:


 * John H. Williams (businessperson), American businessperson
 * John H. Williams (film producer) (born 1953), American film producer
 * John Harry Williams (1908–1966), Canadian-American physicist
 * John Hartley Williams (1942–2014), English poet
 * John Henry Williams (baseball) (1968–2004), American businessperson
 * John Henry Williams (economist) (1887–1980), American economist
 * John Henry Williams (New Zealand politician) or Jack Williams (1919–1975), New Zealand Member of Parliament
 * John Henry Williams (politician) (1870–1936), Welsh Member of Parliament
 * John Henry Williams (soldier) or Jack Williams (1886–1953), Welsh soldier
 * John Hugh Williams (born 1939), New Zealand judge