Hasan Pasha may refer to:
Hasan Pasha (c. 1517-1572) was the son of Hayreddin Barbarossa and three-times Beylerbey of the Regency of Algiers. His mother was a Morisco. He succeeded his father as ruler of Algiers, and replaced Barbarossa's deputy Hasan Agha who had been effectively holding the position of ruler of Algiers since 1533.
Hasan Pasha became ruler of Algiers when his father was called to Istanbul in 1545. Barbarossa died peacefully in the Ottoman capital in 1546.
In June 1545, Hasan Pasha occupied the city of Tlemcen, where he set a Turkish garrison, and put pro-Ottoman Sultan Muhammad on the throne.
In 1548, he was replaced as Beylerbey of Algiers by the Ottoman Admiral Turgut Reis, who was nominated by Suleiman the Magnificent.
Hasan Pasha again became ruler of Algiers, but he was recalled in 1552, on the reason that he was one of the causes of the conflict between the Turks and Morocco. He was replaced by Salah Rais, who nevertheless marched on Fez and occupied the city in early 1554, when the Moroccan ruler Mohammed ash-Sheikh rejected cooperation with the Ottomans.
The Mamluk dynasty of Iraq (Arabic: مماليك العراق Mamālīk al-ʻIrāq) was a dynasty which ruled over Iraq in the 18th and early 19th centuries.
In the Ottoman Empire, Mamluks were freed slaves who converted to Islam, were trained in a special school, and then assigned to military and administrative duties. Such Mamluks presided over Ottoman Iraq from 1704 to 1831.
The Mamluk ruling elite, composed principally of Georgian officers, succeeded in asserting autonomy from their Ottoman overlords, and restored order and some degree of economic prosperity in the region. The Ottomans overthrew the Mamluk regime in 1831 and gradually imposed their direct rule over Iraq, which would last until World War I, although the Mamluks continued to be a dominant socio-political force in Iraq, as most of the administrative personnel of note in Baghdad were drawn from former Mamluk households, or comprised a cross-section of the notable class in Mamluk times.
The early 18th century was a time of important changes both in Constantinople and in Baghdad. The reign of Sultan Ahmed III (1703–30) was marked by relative political stability in the capital and by extensive reforms—some of them influenced by European models—implemented during the Tulip Period by Grand Vizier İbrahim Pasha.