Dhaydan bin Khalid bin Hizam bin Hithlain
|Years of service||1914–1929|
|Battles/wars||Unification of Saudi Arabia|
|Relations||Faisal Al Duwaish (nephew)|
Dhaydan bin Hithlain (died May 1929) was one of the leaders of the Ajman tribe and Amir of the hijrah (settlement) of Al Sarrar. His full name was Dhaydan bin Khalid bin Hizam bin Hithlain. Alexei Vassiliev also calls him Zaidan.
The mother of Faisal Al Duwaish, another tribe leader and one of the significant Ikhwan chiefs, was the sister of Dhaydan bin Hithlain. When Abdulaziz, later King Abdulaziz, captured the base of the Al Ajman tribe, Al Ahsa, in 1913, the tribe resisted the Saudi forces due to the termination of their privileges granted to them by the Ottomans. However, after the disputes with Abdulaziz were settled, Dhaydan joined the Ikhwan movement which was established by Abdulaziz. Soon he appeared to be one of major Ikhwan leaders in addition to Faisal Al Duwaish, Sultan bin Bajad Al Otaibi and Muhsin Al Firm. However, Dhaydan and Muhsin Al Firm were relatively minor Ikhwan figures in contrast to Faisal Al Duwaish and Sultan Al Otaibi. In 1915 the forces of the Ajman tribe led by Dhaydan bin Hithlain did not manage to defeat Al Rashid troops in the battle of Jarrab.
In 1926 the Ikhwan leaders made a pact to contribute one another against Abdulaziz if he would attack one of them. They also shared the regions among themselves, and Dhaydan bin Hitlain assumed the responsibility of Al Ahsa region. In a meeting led by Abdulaziz in October 1928 Dhaydan bin Hithlain and others were removed from their posts in the Ikhwan movement due to their challenge against Abdulaziz's rule. In addition, they were declared by Abdulaziz as rebels on the same date. On 30 March 1929 other Ikhwan leaders rebelled against Abdulaziz due to the latter's activities and fought against him in the battle of Sabilla. Abdulaziz won the battle, and the Ikhwan leaders were arrested or perished. Dhaydan bin Hithlain did not openly confront with Abdulaziz during and following the battle and sent him a letter expressing his loyalty to him. However, Dhaydan bin Hithlain covertly supported the Ikhwan forces in the battle, and his forces did not take part in the battle.
After the battle Dhaydan bin Hithlain remained in Al Ahsa. In May 1929 Dhaydan bin Hithlain was invited to the camp of Fahd bin Abdullah, son of Abdullah bin Jiluwi who was the governor of Al Ahsa province. He and his five companions were murdered by Fahd who was in turn killed by the members of the Ajman tribe. Dhaydan's son, Rakan, and Nayef bin Hithlain succeeded Dhaydan as the leaders of the Ajman tribe.