Nizamiye Masjid (Arabic: مسجد النظامية), often called the Nizamiye Mosque, is a mosque situated in the city of Midrand, City of Johannesburg Metropolitan Municipality, South Africa. It is often stated to be the biggest mosque in the Southern Hemisphere, occupying less than two-thirds of a hectare in a 10 hectares of land. The plans for the mosque were originally designed in Turkey, but a South African architect adapted the design to South African building standards. Construction began in October 2009 and was completed in 2012.