The Federation of Malaya Independence Act 1957 (5 & 6 Eliz.

The Act made provisions for the nation of Federation of Malaya (formerly the Protected States of Johor, Kedah, Kelantan, Negeri Sembilan, Pahang, Perak, Perlis, Selangor, and Terengganu) and the Settlements of Penang and Malacca to gain an independent sovereign country within and become a member of the Commonwealth of Nations on 31 August 1957; prior to this, Federation of Malaya (formerly Malay States) had been a fully self-governing British colony.

It was established by British Malaya and comprised the Federated Malay States (Perak, Selangor, Negeri Sembilan, Pahang), the Unfederated Malay States (Kedah, Perlis, Kelantan, Terengganu, Johor) and the Straits Settlements of Penang and Malacca.

In a series of agreements between the British and the Malayan Union, the Malayan Union was superseded by the Federation of Malaya on 1 February 1948.

After extensive work to stabilize the political situation and reduce racial tensions, the British government finally ceded full autonomy to the Federation of Malaya on August 31, 1957, and the country achieved independence, led by the inaugural prime minister Tunku Abdul Rahman, who remained in office until 1970.