Islamabad is declared the federal capital of the Government of Pakistan.

Islamabad(; Urdu: اسلام‌آباد, romanized: Islāmābād, ; transl. 'City of Islam') is the capital city of Pakistan. It is the country's tenth-most populous city with a population of over 1.1 million and is federally administered by the Pakistani government as part of the Islamabad Capital Territory. Built as a planned city in the 1960s and established in 1967, it replaced Karachi as Pakistan's national capital.

A federal capital is a political entity, often a municipality or capital city, that serves as the seat of the federal government. A federal capital is typically a city that physically encompasses the offices and meeting places of its respective government, where its location and relationship to subnational states are fixed by law or federal constitution. Federal capitals may or may not be considered states in themselves, and either exercise significant political autonomy from the federation or are directly ruled by the national government located within their premises, as federal districts.

The Government of Pakistan, constitutionally known as the Federal Government, commonly known as the Centre, is the national authority of the Islamic Republic of Pakistan, a federal republic located in South Asia, consisting of four provinces and one federal territory. The territories of Gilgit-Baltistan and Azad Kashmir are also part of the country but have separate systems and are not part of the federation.