因佩拉特里斯（葡萄牙语：Imperatriz）是巴西马拉尼昂州的一个市镇。总面积1367.9平方公里，总人口236691人，人口密度173人/平方公里。

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Imperatriz is the second most populated city in the Brazilian state of Maranhão. The city extends along the right bank of the Tocantins River and is crossed by the Belém-Brasília Highway, standing on the border with the state of Tocantins.

Imperatriz is the largest commercial crossing point, energy and economic center of Maranhão and the second largest populational, economical, political and cultural center in the state and has a strategic position not only useful to the state but also for the whole north of Brazil. Imperatriz is a cross between the production of soy of Balsas, in southern Maranhão, timber extraction on the border with Pará state, with steel produced and processed in Açailândia in and family farming in the rest of the state, with emphasis on rice production as well as future potential of power generation and pulp with the implementation of hydroelectric of Estreito, hydroelectric of Serra Quebrada and the Suzano Pulp and Paper factory. Besides these capabilities, the city is a center for mining, mainly in the reserve of Ciriaco, a neighboring region. To provide logistical support to all these activities, Imperatriz is a local wholesale and retail center for goods from the south of Maranhao, north of Tocantins, and east of Pará. For transportation, Imperatriz has the Belém-Brasília highway, the Tocantins River, and the North-South and the Carajás Railroads. In addition, the main lines of electricity transmission for Maranhao and other states pass near the city.