Archibald A.Thomson[1] (16 April 1860 – 10 September 1925) was a Scottish tennis player who competed at the Wimbledon Championships 1885 and 1890.

[4] Archibald A.Thomson was born in Alloa, Clackmannanshire, Scotland on 21 July 1856.

[4] He competed in the men's singles events at the Wimbledon Championships in 1885 where he lost in the second round to the American player James Dwight.

[6] His main career singles title successes came at the South of Scotland Championships at Moffat which he won two times consecutivley (1885–1886),[4] and the Whitehouse Open two times consecutivley (1889–1890),[4] He also won the singles title at the Broughty Ferry Open (1886),[4] the Edinburgh International Exhibition Tournament (1886),[4] the Inverkip Rovers Closed Championships (1887) and the Inverkip Rovers Open also in 1887.

[4]Archibald played his final singles event at the Scottish Border Championships in 1894.