Sayyid Saïd bin Sultan al-Busaidi was Sultan of Muscat and Oman, the fifth ruler of the Busaid dynasty from 1804 to 4 June 1856. His rule began after a period of conflict and internecine rivalry of succession that followed the death of his father, Sultan bin Ahmad, in November 1804. He is often referred to as the Lion of Oman, as one of the greatest Omani sultans.

The Sultanate of Muscat and Oman, also known briefly as the State of Muscat and Oman during the rule of Taimur bin Feisal, was a sovereign state that encompassed the present-day Sultanate of Oman and parts of present-day United Arab Emirates and Pakistan, in the second half of the 19th century and 20th century. Ruled by the Busaid dynasty, it was established as a result of the partition of the Omani Empire upon the death of its last ruler Said bin Sultan. The Sultanate transitioned into a new form of government after the palace coup of 23 July 1970 in which the sultan Said bin Taimur was immediately deposed in favor of his son Qaboos bin Said.