Constitution Day, in honor of the country's independence (self-governing in free association with New Zealand) in 1974. (Niue)

The Schedules of the Niue Constitution Act 1974 form the Constitution of Niue. It stipulates the make-up of the executive branch of the government, the legislative branch, and the judicial branch. The Niue Constitution Act 1974 is the supreme law of Niue; any other Niue law that is inconsistent with the Niue Constitution Act 1974 will be deemed to be invalid.

Niue is a self-governing island country in free association with New Zealand. It is situated in the South Pacific Ocean and is part of Polynesia, and predominantly inhabited by Polynesians. One of the world's largest coral islands, Niue is commonly referred to as "The Rock", which comes from the traditional name "Rock of Polynesia".