Engelbert Bergmann received the field post card which was sent to Muehlheim, in Germany's Hesse State, 71 years ago.
The Christmas card was addressed to Bergmann's grandfather from neighbour and German soldier Emil Adam, who was stationed on the Channel Island Jersey, the 'Daily Mail' reported.
However, the card was snatched, along with 85 other items of mail, by a group of young 'resistance fighters' and never made it to its destination - until now.
The letter was part of a stack recently handed back by a Jersey man, according to the Leadership website.
So far, ten recipients have been tracked down and their post finally received, the newspaper said.
The Channel Islands were occupied by Nazi Germany for much of World War II, from June 30 1940 until the liberation on May 9 1945, the report said.
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They were the only part of the British Isles that Nazi Germany managed to occupy.
According to the report, German forces established their dominance by bringing in infantry, communications and anti-aircraft defences, establishing an air service with mainland France and rounding up British servicemen on leave to cement their position on the Channel Islands.