| Convoy TM 1 | |||||||
|---|---|---|---|---|---|---|---|
| Part of the Battle of the Atlantic, World War II | |||||||
| |||||||
| Belligerents | |||||||
 Germany |
 United Kingdom | ||||||
| Commanders and leaders | |||||||
|
Karl Dönitz |
United Kingdom Richard C. Boyle | ||||||
| Strength | |||||||
| Fourteen submarines |
One destroyer and three corvettes (initial escort) Nine tankers | ||||||
| Casualties and losses | |||||||
| Five submarines damaged | Seven tankers sunk | ||||||
Convoy TM 1 was a British convoy of World War II which suffered heavy losses from German U-boats while transporting oil from Trinidad to the Mediterranean between December 1942 and January 1943.