Futsu (布津町 Futsu-chō) was a town located in Minamitakaki District, Nagasaki, Japan.
On March 31, 2006 Futsu was merged with the towns of Arie, Fukae, Kazusa, Kitaarima, Kuchinotsu, Minamiarima and Nishiarie, all from Minamitakaki District, to form the new city of Minamishimabara.
As of 2003, the town had an estimated population of 4,788 and a density of 455.13 persons per km². The total area was 10.52 km².