Az Zubayr (Arabic: الزبير) is a city in and the capital of Al-Zubair District, part of the Basra Governorate of Iraq. The city is just south of Basra. The name can also refer to the old Emirate of Zubair.
The name is also sometimes written Al Zubayr, Al Zubair, Az Zubair, Zubair, Zoubair, El Zubair, or Zobier.