H
- HA. Halifax to Curaçao 1942 (reverse AH)
- HA. Heel of Italy to Augusta 1943-45 (reverse AH)
- HB. Australia to India Troopships 1945
- HC. Calcutta to Chittagong (reverse CH)
- HF. Halifax to St John NB (reverse FH)
- HG. Gibraltar to UK ("Homeward") 1939-42 (reverse OG)
- HGF. Gibraltar to UK Fast
- HHX. HX ships joining from Halifax
- HJ. Halifax to St. John's NFL (reverse JH)
- HK. Galveston ("Houston") to Key West (reverse KH)
- HM. Holyhead to Milford Haven (reverse MH)
- HN. Bergen to Methil ("Homeward from Norway")1939-40 (reverse ON)
- HON. ON ships joining from Halifax
- HP. Heel of Italy to Piraeus (reverse PH)
- HS. Halifax to Sydney (reverse SH)
- HT. Halifax to Trinidad (reverse TH)
- HX. North America to UK, 1939-45 North Atlantic route (reverse ON).
- HXA. HX ships via English Channel 1939-40, 1944–45
- HXF. Halifax to UK Fast 1939-40
Read more about this topic: List Of World War II Convoy Codes