伊塔蒂亚亚（葡萄牙语：Itatiaia）是巴西里约热内卢州的一座城市。

巴西第一座国家公园伊塔蒂亚亚国家公园就位于该地区。

Itatiaia (Portuguese pronunciation: [itɐtʃiˈaj.jɐ]) is a Brazilian municipality of the state of Rio de Janeiro. It is located at an altitude of 390 meters. Its population was 30,168 (2005) and its area is 224.96 km².

The first Brazilian national park, Parque Nacional do Itatiaia (PNI), is located there.