James Ralph Williams (28 July 1878 – 21 December 1929) was a field hockey player from Wales, who competed in the 1908 Summer Olympics and won the bronze medal as member of the Welsh team.
Williams was born in Penarth, the son of an Army colonel. He was educated at Marlborough College.
With only six teams participating in the field hockey tournament at the 1908 Olympic Games in London, he represented Wales under the Great British flag, where the team were awarded a bronze medal despite Wales only playing in and losing one match.
He played club hockey for Newport Hockey Club and would later become secretary of the South Wales Hockey Association.
By trade, Williams was a director with Watts, Watts & Co. Ltd, who were a shipowners in Cardiff and London.