Kasari (笠利町 Kasari-chō) was a town located on Amami Ōshima in Ōshima District, Kagoshima, Japan.
On March 20, 2006 Kasari was merged with the village of Sumiyō, also from Ōshima District, and the old city of Naze, to form the new city of Amami.
In 2003, the town had an estimated population of 6,856 and a density of 113.83 persons per km². The total area was 60.23 square kilometres (23.25 sq mi).