Mecca is a city in the Tihamah plain in Saudi Arabia that is also the capital and administrative headquarters of the Makkah Region. The city is located 70 km (43 mi) inland from Jeddah in a narrow valley at a height of 277 m (909 ft) above sea level, and 340 kilometres (210 mi) south of Medina. Its resident population in 2012 was roughly 2 million, although visitors more than triple this number every year during the hajj ("pilgrimage") period held in the twelfth Muslim lunar month of Dhu al-Hijjah.

As the birthplace of Muhammad and the site of Muhammad's first revelation of the Quran (specifically, a cave 3 km (2 mi) from Mecca), Mecca is regarded as the holiest city in the religion of Islam and a pilgrimage to it known as the Hajj is obligatory for all able Muslims. Mecca is home to the Kaaba, by majority description Islam's holiest site, as well as being the direction of Muslim prayer.

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