Hawaii- known as "The Big Island"
Guam -- 542 km The previous answer, Honshu, is the largest Island of Japan, but it is not one of the Mariana Islands. Other islands in the Marianas are: Agrihan - 47 km2 Aguijan - 7 km2 Alamagan...
Honshu.
Aquidneck Island.
The largest Island is Hawaii. It is also known as the Big Island.