'TAM' was the designation of Allied military convoys (together with a numerical suffix) plying the route from the Thames river to Antwerp, Belgium, until replaced by the 'TACA' series, and as such reciprocals of the 'ATM' series (December 1944/June 1945).

The first of these 172 convoys was TAM.6 of 2/3 December 1944 with the 6,999-ton British Cape Howe, 7,176-ton US Daniel Drake, 7,086-ton British Empire Pitt which turned back after a collision, 7,176-ton US Enoch Train, 7,134-ton British Fort Fork, 7,176-ton US Francis Asbury, 7,181-ton US James Smith, 7,181-ton US Joseph Holt, 7,176-ton US Joseph Squires, 7,219-ton British Samarovsk, 7,219-ton British Sambalt and 7,219-ton British Sampa, with escort by the escort destroyers Fernie and Holderness. The last convoy was TAM.185 of 31 May/1 June 1945 with the 9,807-ton British Empire Nugget and 8,591-ton US Sea Serpent.