Sir Edward Mortimer Archibald, KCMG (10 May 1810 – 8 February 1884) was a British diplomat, a lawyer and an office holder active during the transition to responsible government in the colony of Newfoundland. Beginning in 1857, Archibald served as British consul to New York, a position he held for twenty-six years until his retirement on 1 January 1883. From 1871 he also undertook the additional responsibility of acting as British consul-general for New York, New Jersey, Delaware, Rhode Island, and Connecticut.