Sulaymaniyah (Kurdish: سلێمانی / Silêmanî, Ar: السليمانية) is a city in Iraqi Kurdistan, Iraq. It is the capital of Sulaymaniyah Governorate. Sulaymaniyah is surrounded by the Azmar Range, Goizja Range and the Qaiwan Range in the north east, Baranan Mountain in the south and the Tasluje Hills in the west. The city has a semi-arid climate with very hot and dry summers and very cold winters. Sulaymaniyah served as the historic capital of the Kurdish principality of Baban from 1784 to 1850.

The modern city of Sulaymaniyah was founded on 14 November 1784 by the Kurdish prince Ibrahim Pasha Baban who named it after his father Sulaiman Pasha. Because it was founded as the capital of a powerful Kurdish principality, Sulaymaniyah has developed into a large city with a population of about 1.041.490 people. It is the cultural center of the Sorani-speaking Kurds and an important economic center for Iraqi Kurdistan.

The region of Sulaymaniyah was known as Zamwa prior to the foundation of the modern city in 1784. The capital of the Kurdish Baban principality (1649–1850), before Sulaymaniyah was a territory named "Qalachwalan". At the time of the Babani's rule there were major conflicts between the Safavid dynasty and the Ottoman Empire. Qalachuwalan became a battle ground for the two rivals.