阿蒂巴亚（葡萄牙语：Atibaia）是巴西圣保罗州的一个市镇。总面积478.101平方公里，总人口119029人，人口密度249人/平方公里。

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Atibaia (or Estância de Atibaia) is a Brazilian municipality in the state of São Paulo, Brazil. The name is derived from an indigenous language called Tupi, and means "healthy water river". Its name has changed over time, from the primitive Tupi word Tybaia, to Thibaia, Atubaia, Thibaya, and finally the city's modern name, Atibaia.