Ta'izz (Arabic: تعز Taʿizz), or Taiz, is a city in the Yemeni Highlands, near the famous Mocha port on the Red Sea, lying at an elevation of about 1,400 metres above sea level. It is the capital of Ta'izz Governorate. With a population of over 600,000 in 2005, it is the third largest city in Yemen after the capital Sana'a and the southern port of Aden.