Independence Day, also known as National Day, is the independence day of the Federation of Malaya from the British Empire. It commemorates the Malayan Declaration of Independence of 31 August 1957, and is defined in article 160 of the Constitution of Malaysia. The day is marked by official and unofficial ceremonies and observances across the country.

The Federation of Malaya, more commonly known as Malaya, was a country of what previously had been the Malayan Union and more previously, British Malaya. It comprised eleven states – nine Malay states and two of the Straits Settlements, Penang and Malacca. It was established on 1 February 1948.