Satsuma Domain (薩摩藩, Satsuma-han), also known as Kagoshima Domain, was a Japanese domain of the Edo period. It is associated with the provinces of Satsuma, Osumi and Hyūga in modern-day Kagoshima prefecture and Miyazaki prefecture on the island of Kyūshū.In the han system, Satsuma was a political and economic abstraction based on periodic cadastral surveys and projected agricultural yields. In other words, the domain was defined in terms of kokudaka, not land area.