阿马帕（Amapá）是巴西的一州，位于巴西的北部，北邻法属圭亚那，东临大西洋，南临巴西的帕拉州。

阿马帕位于亚马逊河河口附近，大部份被雨林覆盖。内陆有一些圭亚那高地向东延伸出的低矮的丘陵。

阿马帕目前产铁、铝土矿，也有其它的矿藏。

Amapá (Portuguese pronunciation: [ɐmɐˈpa]) is a state located in the northern region of Brazil. It is the second least populous state and the eighteenth largest by area. Located in the far northern part of the country, Amapá is bordered clockwise by French Guiana to the north, the Atlantic Ocean to the east, Pará to the south and west, and Suriname to the northwest. The capital and largest city is Macapá.