Andrzej Duda was set to join dignitaries from various countries at the Mardasson Memorial near the southern Belgian town of Bastogne, where thousands of Allied soldiers were killed during the war.
Belgium's King Philippe and Prime Minister Sophie Wilmès, German President Frank-Walter Steinmeier and US Secretary of Defence Mark Esper were expected to be among those gathered for an official ceremony of remembrance, alongside US House Speaker Nancy Pelosi and officials from Britain, Canada and France.
Later in the day, another memorial ceremony was scheduled to take place at an American military cemetery in Hamm, Luxembourg.
Luxembourg's Grand Duke Henri and Prime Minister Xavier Bettel were expected to host that ceremony.
The Battle of the Bulge, also known as the Battle of the Ardennes, was the last major German offensive of World War II.
The town of Bastogne in Belgium’s southern Wallonia region, close to the Luxembourg border, was the scene of a heroic defence by Allied troops including Polish airmen.
The bloody battle raged across the Ardennes forest for six weeks until the Allies prevailed in January 1945.
Poland's presidential couple in September attended events to mark the 75th anniversary of the liberation of Belgium’s northern region of Flanders by the Polish 1st Armoured Division during World War II.
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Source: IAR, prezydent.pl