Qaboos bin Said (Arabic: قابوس بن سعيد, IPA: [qaː.buːs bin sa.ʕiːd ʔaːl sa.ʕiːd]; 18 November 1940 – 10 January 2020) was the Sultan of Oman from 23 July 1970 until his death. A
fifteenth-generation descendant of the founder of the House of Al Said, he was the longest-serving leader in the Middle East and Arab world at the time of his death.The only son of Sultan Said bin Taimur of Muscat and Oman, Qaboos was educated in England. After graduating from the Royal Military Academy Sandhurst, he served briefly in the British Army. He returned to Oman in 1966 and was the subject of considerable restrictions from his father. In 1970, Qaboos ascended to the Omani throne after overthrowing his father in a coup d'état, with British support. The country was subsequently re-named the Sultanate of Oman.
As Sultan, Qaboos implemented a policy of modernization and ended Oman's international isolation. His reign saw a rise in living standards and development in the country, the abolition of slavery, the end of the Dhofar Rebellion and the promulgation of Oman's constitution. Suffering from poor health in later life, Qaboos died in 2020. He had no children, so he named his cousin Haitham bin Tariq his heir.
He is also known as Qaboos ibn Said and Qaboos ibn Saeed.