|Native name: ابوموسی|
Abu Musa Island in Persian Gulf
|Major islands||Abu Musa|
|Area||12 km2 (4.6 sq mi)|
|Largest city||Abu Musa (pop. 1,953)|
|Population||2,131 (as of 2012)|
Abu Musa (Persian: ابوموسی) is a 12.8 km² Iranian island in the eastern Persian Gulf, which is part of Hormozgan province. It is part of a six-island archipelago near the entrance to the Strait of Hormuz. Due to the depth of sea, oil tankers and big ships, have to pass between Abu Musa and Greater and Lesser Tunbs; this makes these islands one of the most strategic points in the Persian Gulf.
Abu Musa island is 75 km from Bandar Lengeh and 16 km from Strait of Hormuz. It is the farthest island (out of 14 islands of Hormozgan) from the Iranian coast of the Persian Gulf. It's 46 m above the sea. The highest place is the 110-meter Halva mountain. Abu Musa city is the center of the island. The weather in Abu Musa is warm and humid, although, compared to the place in the Persian Gulf, Abu Musa has a better climate and the most diverse ecosystem, but it lacks suitable soil and water for farming leaving fishing as the main industry for locals. It is one of the main ports for exporting oil from Iran.
The sovereignty of Iran on Abu Musa has been disputed by UAE.  The dispute between Iran and UAE started in 1974, three years after the latter's establishment. The island had been under Persian control until the early 20th century. In 1906, Iran awarded a concession for the iron oxide deposits of Abu Musa to Wonckhaus, a German enterprise. However, the concession was canceled in 1907 because of British opposition, resulting in an international incident. After 1908, the UK controlled the island along with the other British-held islands in the Persian Gulf, including what is today the UAE. In the late 1960s, Britain transferred administration of the island to the British-appointed Sharjah, one of the seven sheikdoms that would later form the UAE.
After Britain announced in 1968 that it would end its administrative and military positions in the Persian Gulf, Iran moved to reattach the island politically to the mainland. On November 30, 1971 (two days before the official establishment of UAE), Iran and Sharjah signed a Memorandum of Understanding. They agreed to allow Sharjah to have a local police station and Iran to station troops on the island according to the map attached to the Memorandum of Understanding. The agreement also divided the island's energy resources between the two signatories. "By agreeing to the pact, the tiny emirate prevented an invasion by Iran, which two days earlier had taken two other disputed islands, Greater and Lesser Tunb, which were even smaller and uninhabited." 
The UAE took its sovereignty claim over Abu Musa and the two Tunb islands to the 9 December 1971 meeting of the United Nations Security Council. At that meeting, it was decided to “defer consideration of this matter to a later date”. Iraq (Ahmed Hassan al-Bakr era), Kuwait, Algeria, South Yemen and Libya held the view that the territory rightfully belongs to the UAE. Since that time, the UAE has consistently called in public statements for either bilateral negotiations or by referring the issue to the International Court of Justice (or another form of international arbitration).
Saddam Hussein attempted to justify the Iran-Iraq War by claiming that one of the objectives was to "liberate" Abu Musa and Greater and Lesser Tunbs in Persian Gulf. In 1992, Iran expelled foreign workers who operated the UAE-sponsored school, medical clinic, and power-generating station. The Island dispute has also caused serious friction between Ras Al Khaimah and Sharjah on one hand and some other emirates of the UAE on the other hand. Ras Al Khaimah advocates tough measures against Iran. Dubai, on the other hand, believes that the conflict is unnecessary. Indeed, the present ruler of Dubai (who is also Vice President, Prime Minister and Defence Minister of the UAE), Sheikh Muhammad, has earlier stated publicly that "he believes the tensions over the islands have been fabricated by the United States".
In 2012 a visit to the island by Iranian president Ahmedinejad provoked a diplomatic incident. Iran's historical claim to ownership over the islands roots back to the Parthian and Sassanid Empires, among others. Iran considers the island to have been occupied by the UK and refers to the agreement between Iran and emirate of Sharjah at 1971.
Most of residents of the island speak "Bandari dialect" of Persian.
- Iran–United Arab Emirates relations
- Seizure of Abu Musa and the Greater and Lesser Tunbs
- Sir Abu Nu’ayr
- Iranian Islands of Tunbs and Abu Musa
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- United Nations (17 September 1997). "Letter dated 16 September 1997 from the Permanent Representative of the United Arab Emirates to the United Nations addressed to the Secretary-General". United Nations General Assembly. Oceans and the Law of the Sea. 52nd Session.
- Mattair, Thomas (2005). The Three Occupied Islands of the UAE: The Tunbs and Abu Musa. Abu Dhabi: Emirates Center for Strategic Studies and Research. pp. 165–166. ISBN 9948-00-765-4.
- GlobalSecurity.org about Abu Musa
- Rubin, Barry M. (2002). Crises in the Contemporary Persian Gulf. Routledge. pp. 44–45. ISBN 978-0-7146-5267-2.
- Ahmadinejad's visit to island prompts UAE to recall Iran ambassador, CNN April 12, 2012
- World Gazetteer
- World Gazetteer
- Haghshenas, Seyeed Ali, Iran Historical Sovereignty over the Tunbs and BuMusa Islands. 2010, Tehran.
- Schofield, Richard (2003). Unfinished Business: Iran, the Uae, Abu Musa and the Tunbs. London: Royal Institute of International Affairs. ISBN 0-905031-90-3.
|Wikimedia Commons has media related to Abu Musa.|
- History, description, map of Abu Musa and nearby islands (Archived 2009-10-24)
- History of Abu Musa and The Tunbs
- UAE Interact Abu Musa News
- Abu Musa's military garrison
- Dispute between Iran and Sharjah
- Report of the International symposium on Modern Boundaries of Iran - Problems and practices of Iranian boundaries, Pirouz Mojtahed-Zadeh, 10/15/02