The Macao Special Administrative Region (Macau or Macao, simplified Chinese: 澳门; traditional Chinese: 澳門; Mandarin Pinyin: Aomen; Jyutping: Ou Mun) is one of China's two Special Administrative Regions. (The other one is Hong Kong). Macau is a small city in the southern coast in China. Like Hong Kong, Macau also has a large amount of autonomy, with its own passport, currency, economic rules, and constitution.