The Royal House of Sulu is an Islamicroyal house which ruled the Sulu Sultanate (now part of Indonesia, Malaysia and the Philippines). In 1962, Philippine Government under the leadership of President Diosdado Macapagal officially recognised the continued existence of the Royal Sultanate of Sulu. On 24 May 1974 Sultan Mohammad Mahakuttah Kiram, under Memo Order 427, which was issued by Philippines President Ferdinand Marcos. Memo Order 427 states that "The Government has always recognised the Sultanate of Sulu as the legitimate claimant to the historical territories of the Republic of Philippines". The Memo Order 427 states that Mahakuttah A. Kiram (reigned 1974–1986) is officially the recognised Sultan of Sulu. Sultan Mahakuttah A. Kiram eldest son Sultan Mudarasulail A Kiram went exile in Malaysia since he was a 8 years old child,finally was being recognised by the Syariah Court In Mindanao as the 30th Legitimate Sultan Of Sulu in the year 2016. As the eldest son of the former Sultan, he is the legitimate heir claimant to the throne of the Sultanate of Sulu. The current ruling lineage is the Royal House of Kiram. The Royal House of Kiram  descends from Sultan Jamalul Kiram I, who was the Sultan of Sulu from 1823–1844.
Members of the royal house of Sulu 
hold the style of His/Her Royal Highness (HRH). The adopted members (their spouses and their children) of the Royal House of Sulu hold the style of His/Her Highness (HH).