'TLDM' was the designation of Allied convoys (together with a numerical suffix) plying the route from Takoradi, Gold Coast, via Lagos, Nigeria, and Douala, Cameroun, to Matadi, Congo (November 1942/April 1943).
The first of these four convoys was TLDM.1 of 9 November 1942 with 16 merchant vessels, and the last was TLDM.4 of 24 April 1943 with four merchant vessels.