'GTX' was the designation of Allied convoys (together with a numerical suffix) plying the route from Gibraltar via Tripoli, Libya, to Alexandria or Port Said, Egypt (May/August 1943).

The first of this 'Gibraltar, Tripoli and Alexandria' series was GTX.1 of 24 May/4 June 1942 from Gibraltar to Alexandria with the 3,369-ton Dutch Agatha, 3,357-ton Dutch Antonia, 5,818-ton British Benreoch, 271-ton British Caid, 8,009-ton French Cap St Jacques, 6,361-ton British City of Agra, 7,177-ton US David Stone, 4,944-ton British Dunkeld, 5,108-ton British Egra, 3,722-ton British Empire Commerce II, 2,887-ton British Empire Dunstan, 5,853-ton British Greystoke Castle, 5,401-ton British Havildar, 700-ton British commissioned rescue tug Hengist towing Caid, 4,227-ton British commissioned coastal forces depot ship Vienna, 7,176-ton US John Hart, 7,009-ton British Karoa, 1,850-ton British Mirror, 5,150-ton British Myrtlebank, 7,174-ton British Ocean Verity, 5,840-ton British Romney, and 6,774-ton British Vacport.

The last of the series was GTX.5 of 4/15 August 1943 from Gibraltar to Port Said with the 6,992-ton British Afghanistan, 7,191 US Alexander White, 2,115-ton French Argonne, 890-ton British Atlantic Coast, 7,266-ton British Avristan, 10,388-ton US Beacon, 5,818-ton British Benreoch, 7,181-ton US Charles M. Hall, 1,912-ton French Chateau Latour, 7,063-ton British City of Lyons, 6,921-ton British City of Newcastle, 1,925-ton British Como, 6,004-ton British Contractor, 1,317-ton Norwegian Corvus, 5,881-ton British Custodian, 8,258-ton British Defender, 8,146-ton British Diloma, 5,649-ton US Dorchester, 284-ton British Empire Ace, 274-ton British Empire Dennis, 6,766-ton British Empire Prospero, 2,229-ton British Empire Scout, 1,597-ton Norwegian Evviva, 7,927-ton Norwegian Falkefjell, 5,115-ton British Fort Aklavik, 7,134-ton British Fort Augustus, 7,130-ton British Fort Cataraqui, 7,130-ton British Fort Chambly, 7,134-ton British Fort Gaspereau, 7,133-ton British Fort Maurepas, 7,113-ton British Fort Pine, 5,057-ton British Forthbank, 7,350-ton Norwegian Frontenac, 1,775-ton Gallium, 7,118-ton Dutch Garoet, 7,200-ton US George Shiras, 7,805-ton Panamanian Good Gulf, 7,141-ton US Gulfdisc, 7,176-ton US Hannis Taylor, 7,177-ton Henry Middleton, thee British motor minesweepers, British water boat Civic, British mooring vessel Moorfly, 1,236-ton British Iceland, 7,176-ton US Isaac Coles, 7,176-ton US James Monroe, 2,358-ton French Janine, 1,527-ton British Kalarand, 1,358-ton British Kola, 7,197-ton US Lawton B. Evans, 5,150-ton British Lervernbank, 1,942-ton Polish Lewant, 345-ton Dutch Limburg, 964-ton British Lochee, 7,176-ton US Lucretia Mott, 1,894-ton Danish Marit Maersk, 8,196-ton British Nacella, 5,424-ton British Nurjehan, 7,174-ton British Ocean Vigour, 7,174-ton British Ocean Viking, 7,178-ton British Ocean Wanderer, 1,533-ton British Ousel, 7,181-ton US Peter L. McGuire, 7,178-ton US Pierre Laclede, 9,320-ton Norwegian President de Vogue, 1,589-ton British Spero, 7,196-ton US Stephen C. Foster, and 7,176-ton US Thomas Nelson Page.