Saif bin Sultan II (c. 1706 – 1743) is the sixth of the Yaruba dynasty of Imams of Oman, a member of the Ibadi sect.

He holds the position of Imam four times during a chaotic period of civil war and invasion by Persian forces.

Saif bin Sultan II inherits leadership of the country as a child, but is pushed aside in favor of his brother.

His brother is deposed, and Saif is again proclaimed Imam, although power is held by a regent who later proclaims himself Imam.

The regent is deposed, Saif is proclaimed Imam again, and after a civil war is again deposed in 1724.

Fighting continues, and in 1728 Saif becomes Imam for the fourth and last time.

He is forced to share power with a rival Imam who controls the interior.

A civil war ensues in which the country is divided.

Saif bin Sultan II twice calls for help from Persia.

The first time the Persians loot the towns and cause great destruction before leaving.

The second time they set about conquering the country.

Saif bin Sultan II is deposed in 1742 and dies in 1743.