Muhanna bin Sultan (Arabic: مهنا بن سلطان) (died 1720) was one of the rival Imams at the start of the civil wars in Oman in the final years of the Yaruba dynasty.
[1] Saif bin Sultan II was aged twelve when his father died in 1718.
In theory the office of Imam was elected, but in practice for many years it had been inherited by members of the Ya'Aruba family.
[1][b] Although Saif was popular among the people, the ulama considered he was too young to hold office and favored Muhanna as Imam.
[3] Muhanna bin Sultan was apparently elected Imam by the ulama in May 1719 in the citadel at Nizwa.
He abolished the tariffs in the port of Muscat, which caused trade to double and the economy to flourish.