The Pakistan Navy (PN) (Urdu: ) (romanized: Pkistn Bhr'a; pronounced [pakstan baia]) is the naval branch of the Pakistan Armed Forces. It came into existence by transfer of personnel and equipment from the Royal Indian Navy that ceased to exist following the partition of British India through a parliamentary act that established the independence of Pakistan and India from the United Kingdom on 14 August 1947.Its primary objective is to ensure the defence of the sea lines of communication of Pakistan and safeguarding Pakistan's maritime interests by executing national policies through the exercise of military effect, diplomatic and humanitarian activities in support of these objectives. In addition to its war services, the Navy has mobilized its war assets to conduct humanitarian rescue operations at home as well as participating in multinational task forces mandated by the United Nations to prevent seaborne terrorism and privacy off the coasts.The Pakistan Navy is a volunteer force which has been in conflict with neighbouring India twice on its sea borders, and has been repeatedly deployed in the Indian Ocean to act as a military advisor to Gulf Arab states and other friendly nations during the events of multinational conflict as part of its commitment to the United Nations.:88 The Navy has several components including the Naval Aviation, Marines, and the Maritime Security Agency (a coast guard). Since its commencement on 14 August 1947, the defensive role of the Navy has expanded from securing the sealines and becoming the custodian of Pakistan's second strike capability with an ability to launch underwater missile system to target enemy positions.The Navy is commanded by the Chief of Naval Staff, a four-star admiral, who is a member of the Joint Chiefs of Staff Committee. The Chief of Naval Staff is nominated by the Prime Minister and appointed by the President of Pakistan. The current Chief is Admiral Amjad Khan Niazi who was appointed on 7 October 2020. Admiral Niazi is the 22nd Chief of the Pakistan Navy, taking charge after Zafar Mahmood Abbasi.

The Indian Navy is the naval branch of the Indian Armed Forces. The President of India is the Supreme Commander of the Indian Navy. The Chief of Naval Staff, a four-star admiral, commands the navy. As a blue-water navy, it operates significantly in Persian Gulf Region and the Horn of Africa to the Strait of Malacca, and routinely conducts anti-piracy operations and partners with other navies in the region. It also conducts routine two to three month-long deployments in the South and East China seas as well as the western Mediterranean sea simultaneously.

The primary objective of the navy is to safeguard the nation's maritime borders, and in conjunction with other Armed Forces of the union, act to deter or defeat any threats or aggression against the territory, people or maritime interests of India, both in war and peace. Through joint exercises, goodwill visits and humanitarian missions, including disaster relief, Indian Navy promotes bilateral relations between nations.

As of June 2019, Indian Navy has 67,252 active and 75,000 reserve personnel in service and has a fleet of 150 ships and submarines, and 300 aircraft. As of November 2021, the operational fleet consists of 1 active aircraft carrier and 1 amphibious transport dock, 8 landing ship tanks, 10 destroyers, 13 frigates, 1 ballistic missile submarine, 16 conventionally-powered attack submarines, 24 corvettes, one mine countermeasure vessel, 4 fleet tankers and numerous other auxiliary vessels, small patrol boats and sophisticated ships. It is considered as a multi-regional power projection blue-water navy.