Amakusa Sea

 ( Seas Of Japan ) 

Amakusa Nada () is a sea area extending to the west of Shimoshima Island, Amakusa in Japan.井上尚文,1984.『長崎県大百科事典』 長崎新聞社

It is bounded by Gotō Islands and cape Nomo in the north, and by Kuronoseto (黒ノ瀬戸) and Nagashima (長島海峡) straits in the south.