Saga (佐賀町, Saga-chō?) was a town located in Hata District, Kōchi, Japan.
On March 20, 2006 Saga was merged with the town of Ōgata, also from Hata District, to form the new town of Kuroshio and no longer exists as an independent municipality.
As of 2003, the town had an estimated population of 4,033 and a density of 53.18 persons per km². The total area was 75.84 km².