| Convoy HX.300 | |||||
|---|---|---|---|---|---|
| Part of World War II | |||||
| |||||
| Belligerents | |||||
 Germany |
 United Kingdom | ||||
| Commanders and leaders | |||||
| Admiral Karl Dönitz | Rear-Admiral Sir A T Tillard KBE DSO | ||||
| Strength | |||||
| unknown |
159 merchant ships 32 escorts | ||||
| Casualties and losses | |||||
| unknown | none | ||||
Convoy HX 300 was the 300th of the numbered series of World War II HX convoys of merchant ships from Halifax to Liverpool. It started its journey on 17 July 1944 and was the largest convoy of the war, comprising 166 ships.