| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Code |
Notes |
| T. | Trinidad outwards and Trinidad - Recife (Pernambuco) |
| T.A. | 'Monsters' (large liners) U.K. - U.S.A. (Military) |
| T.A. | Tobruk - Alexandria. (Cancelled). |
| T.A. | Thames - Antwerp. (C.A.F.O. 1101.21.6.45). |
| T.A.G. | (Superseded TAW.) Trinidad - Arabia - Guantanamo. (TAG.1 = 29.8,42). |
| T.A.W. | Trinidad - Curacao - Key West. (To start 2.7.42). |
| T.A.W. | Trinidad - Aruba (amended). |
| T.B. | Air Trainees U.SA - Sydney (N.S.W.) (Admiralty 2002A/12/1/42 to A.C.N.B.) |
| T.B. | Trinidad - Bahia (BAD.0105Z/30/12/1942). |
| T.B.C. | Thames - Bristol Channel (Southabout) |
| T.C. | Canada - U.K. (Military). (Commenced 10.12.1939). |
| T.C. | Bizerta, Tunisia - Corsica and Sardinia. |
| T.C.U. | Combined U.T. and C.U. convoys, see Cominch 181530 April/44. T.C.U. convoys are certain C.U. convoys with a reinforced escort, and include fully embarked troopships. They replace the U.T. troop convoys which have been discontinued. A.M. 1854/26/5/44. |
| T.D. | Thursday Island - Darwin. |
| T.D. | New Zealand - Australia (Northern Territory). (Amended). |
| T.E. | Trinidad East to dispersal point. (Comnaveu 1026/12/12/42). |
| T.E. | Convoys in Operation 'Torch' area. Changed to G.C. in January 1943. Gibraltar to North African ports. |
| T.F. | Convoys in Operation 'Torch' area. Changed to G.C. in January 1943. (T.F. still being used in March 1943). |
| T.F. | Trinidad - Sierra Leone (Freetown), (Comnaveu 1026/12/12/42). |
| T.G. | Trinidad - Guantanamo. (See B.R.L.0. Trinidad 0833Q/26/10/42). (Cancelled). |
| T.G.E. | Takoradi to eastward (local). T.G.E.1 sailed 22.9.43. |
| T.H. | Trinidad - Halifax (May 1942). (Canadian tankers). (Discontinued when A.H., HA began) |
| T.J. | Trinidad - Rio de Janeiro. (Comnaveu. 1026/12/12/42). T.J.1 sailed 3.7.43). |
| T.J. | Aden - Colombo. (Cancelled). |
| T.J..F. | U.S. North Africa - Assault (Landing craft). Operation 'Husky'. (Fast). |
| T.J.M. | U.S. North Africa - Assault (Landing craft). Operation (Medium). |
| T.J.S. | U.S. North Africa - Assault (Landing craft). Operation (Slow). |
| T.L.D.M. | Takoradi - Lagos - Duala - Matadi (Cancelled) |
| T.M. | Tanker convoy Trinidad for Gibraltar. (Trinidad 1632/28/12/42). Amended to Trinidad - Mediterranean. |
| T.M. | Norwegian troop convoy (See 27/4/40) (Obsolete). |
| T.N. | Townsville - New Guinea. |
| T.O. | N.W. Africa - Caribbean - New York. (Amended). |
| T.O. | N.W. Africa - Dutch West Indies. |
| T.O. | Trinidad - Curacao and Aruba. (T.0.1 sailed 26.5.1942) To be abolished when TAW. starts. (See O.T. for resumption). (T.O.1 sailed 24.2.1943). |
| T.P. | Norwegian troop convoy (homeward). (See 20.4.40). |
| T.P. | Trinidad - Surinam (Paramaribo). (Comnaveu 1026/12/12/42). (Obsolete). |
| T.P. | Tarawa (Gilbert Island) - Pearl Harbour. |
| T.R. | Trinidad - Recife (Pernambuco). (Comnaveu 1026/12/12/42). |
| T.S. | Takoradi - Sierra Leone, (Freetown). |
| T.S.B.1 | (Slow) 'Avalanche' (Attack on Naples). |
| T.S.D. | Takoradi - Dakar. |
| T.S.F.1 | (Personnel) 'Avalanche' (Attack on Naples). Convoy 9.9.1943. |
| T.S.W.1 | (Medium) 'Avalanche' (Attack on Naples). |
| T.U. | U.K. - U.S.A. (Military). |
| T.V. | Tripoli (L) - Valetta (Cancelled C.A.F.0.2645/1944) |
| T.X. | Tripoli (L) - Alexandria. (T.X.1 sailed 10/9/1943, arrived 15/9/1943). (Cancelled C.A.F.O., 2645/194, |
| Tortank | Express tanker convoys for 'Torch' (proposed by B.M.S.M. Washington 2337Z/1/12/42). |
Data obtained from The National Archives kindly provided by Roger Hollywood.