Victory Day is a commonly used name for public holidays in various countries, where it commemorates a nation's triumph over a hostile force in a war or the liberation of a country from hostile occupation. In many cases, multiple countries may observe the same holiday, with the most prominent united celebrations occurring in states that comprised the Allies of World War II, celebrating the defeat of Nazi Germany.

Victory Day is a national holiday in Bangladesh celebrated on 16 December to commemorate the defeat of the Pakistan Armed Forces in the Bangladesh Liberation War in 1971 and the Independence of Bangladesh. It commemorates the Pakistani Instrument of Surrender, wherein the commander of the Pakistani Forces, General AAK Niazi, surrendered to the Mukti Bahini and their Indian allies, ending the nine-month Bangladesh Liberation War and 1971 Bangladesh genocide and marking the official secession of East Pakistan to become the new state of Bangladesh.