macauLargo do Senado. Macau (also spelled Macao, , Oumún in Cantonese) is a former Portuguese colony, a world-renowned gambling destination, and one of the world's mostThe Macao Special Administrative Region (Macau or Macao, simplified Chinese: ; traditional Chinese: ; pinyin: Aomen; Jyutping: Ou Mun, Portuguese: Região Administrativa Especial de Macau da República Popular da China) is