David Thomson (1847 – 14 September 1876) was a Welsh amateur footballer who helped found the Druids club and played for Wales in their first international match. He has been described as "one of the pioneers of Welsh football".
Thomson was born in Dudley in Staffordshire, England and moved across the border into Wales as a child when his family settled in the Ruabon area, together with his younger brother George. Thomson enlisted in the Royal Denbighshire Militia, reaching the rank of captain.
Thomson was also an excellent cricketer with Wynnstay C.C.
In 1869, Thomson (assisted by his younger brother) helped form the Plasmodic club which in 1872 amalgamated with two other Ruabon clubs, "Ruabon Rovers" and "Ruabon Volunteers", and under the guidance of Llewelyn Kenrick became Ruabon Druids. Thomson became the first president of the amalgamated club. All three played a prominent role in the foundation of the Football Association of Wales in early 1876, with David attending the first meeting of the Association, when they agreed to adopt the Football Association rules. Thomson was also a member of the Shropshire Wanderers club.
In February 1876, Kenrick organized trial matches to select Welsh players to represent their country in a match against Scotland.The international match was played at Hamilton Crescent, Partick, the home of the West of Scotland Cricket Club on 25 March 1876, with Thomson playing as a goalkeeper. The Welsh were well defeated, conceding four goals without reply. Thomson had a tough international baptism with at least one of the Scots goals coming when Thomson and the ball were charged over the line.