The Ottoman dynasty (Turkish: Osmanlı Hanedanı) consisted of the members of the imperial House of Osman (Ottoman Turkish: خاندان آل عثمان, romanized: Ḫānedān-ı Āl-i ʿOsmān), also known as the Ottomans (Turkish: Osmanlılar). According to Ottoman tradition, the family originated from the Kayı tribe branch of the Oghuz Turks, under the leadership of Osman I in northwestern Anatolia in the district of Bilecik, Söğüt. The Ottoman dynasty, named after Osman I, ruled the Ottoman Empire from c. 1299 to 1922.

During much of the Empire's history, the sultan was the absolute regent, head of state, and head of government, though much of the power often shifted to other officials such as the Grand Vizier. During the First (1876–78) and Second Constitutional Eras (1908–20) of the late Empire, a shift to a constitutional monarchy was enacted, with the Grand Vizier taking on a prime ministerial role as head of government and heading an elected General Assembly.

The imperial family was deposed from power and the sultanate was abolished on 1 November 1922 immediately after the Turkish War of Independence. The Republic of Turkey was declared the following year. The living members of the dynasty were initially sent into exile as personae non-gratae, though some have been allowed to return and live as private citizens in Turkey. In its current form, the family is known as the Osmanoğlu family.

The Ottoman dynasty operated under several basic premises: that the Sultan governed the empire's entire territory, that every male member of the dynastic family was hypothetically eligible to become Sultan, and that only one person at a time could be the Sultan. Such rules were fairly standard for monarchic empires of the time. The certain processes through which men rose to the Sultanate, however, were very specific to the Ottoman Empire. To go into greater detail about these processes, the history of succession between Sultans can be divided into two eras: the period between the reign of Orhan (1323–1362), the first person to inherit the Ottoman sultanate, and the reign of Ahmed I (1603–1617); and the period following Ahmed I's reign.

The succession process during the first period was dominated by violence and intra-familial conflict, in which the various sons of the deceased Sultan fought until only one remained alive and, thus, inherited the throne. This tradition was known as fratricide in the Ottoman Empire but may have evolved from tanistry, a similar succession procedure that existed in many Turco-Mongolic dynasties predating the Ottomans. Sons of the Sultan were often given provincial territories to govern until the Sultan's death, at which point they would each vie for the throne. Each son had to, according to historian H. Erdem Cipa, "demonstrate that his fortune was superior to the fortunes of his rivals", a demonstration that often took the form of military accomplishment and ruthlessness. This violence was not considered particularly unexpected or unusual. As Cipa has noted, the Ottoman words for "successor" and "conflict" share the same Arabic root, and indeed, all but one of the successions in this roughly 200-year period involved a resolution by combat. Over time, the combat became increasingly prevalent and recognized, especially after a Janissary uprising negated Murad II's attempt to abdicate the throne peacefully to his son, Mehmed II, in 1444. During the eventual reign of Mehmed II (1451–1481), fratricide was legalized as an official practice; during the reign of Bayezid II (1481–1512), fratricide between Bayezid II's sons occurred before Bayezid II himself died; and after the reign of Murad III (1574–1595), his successor Mehmed III executed 19 brothers to claim the throne.

During the second period, the tradition of fratricide was replaced by a simpler and less violent procedure. Starting with the succession from Ahmed I to Mustafa I in 1617, the Ottoman throne was inherited by the eldest male blood relative – not necessarily the son – of the Sultan, regardless of how many eligible family members were alive. The change in succession procedure was likely instigated by numerous factors, including fratricide's decline in popularity among Ottoman elites and Ahmed I's decision not to kill Mustafa when inheriting the throne from Mehmed III in 1603. With the door open for a policy change, a political debate arose between those who supported unrestricted Sultanic privilege and those who supported a stronger, centralized law system that would supersede even the Sultan's power to an extent. Historian Baki Tezcan has argued that the latter faction – with the help of the influential şeyhülislam Hocazade Esad Efendi – was able to prevail in this instance. The bloodless succession from Ahmed I to Mustafa I in 1617 "provided a reference for the eventual stabilization of the rule of Ottoman succession, the very regulation of which by an outside force was in effect a constitutional check on the dynastic prerogative," Tezcan has written. The precedent set in 1617 stuck, as the eldest living family member successfully inherited the throne in each of the following 21 successions, with relatively few instances of a son inheriting the throne.

From the fourteenth through the late sixteenth centuries, the Ottomans practiced open succession – something historian Donald Quataert has described as "survival of the fittest, not eldest, son." During their father's lifetime, all adult sons of the reigning Osmanoğlu family's sultan were given provincial governorships in order to gain experience in administration (a practice commonly found in Central Asian tradition), accompanied and mentored by their retinues and tutors. Upon the death of their father, the reigning sultan, these sons would fight amongst themselves for the succession until one emerged triumphant. The first son to reach the capital and seize control of the court would usually become the new ruler. The proximity of a Şehzade (Prince) to Constantinople improved his chances of success, simply because he could hear of his father's death, seize control of the Ottoman court in the capital, and declare himself Sultan first.^{[citation needed]} A Sultan could thus hint at his preferred successor by giving a favourite son a closer governorship.^{[citation needed]} Bayezid II, for instance, had to fight his brother Cem Sultan in the 1480s for the right to rule.^{[citation needed]}

Occasionally, the half-brothers would begin the struggle even before the death of their father. Under Suleiman the Magnificent (1520–1566), strife between his sons Şehzade Mustafa and Şehzade Selim (later Selim II) caused such internal turmoil that Suleiman ordered the deaths of both Şehzade Mustafa and another son, Şehzade Bayezid, leaving Şehzade Selim the sole heir.^{[citation needed]}