Obama, Nagasaki

 was a town located in Minamitakaki District, Nagasaki Prefecture, Japan.
As of March 31, 2014, the census reports that the town had a population of 9,166 people and a density of 108.29 people per km². The total area was 50.84 km².
On October 11, 2005, Obama, along with the towns of Aino, Azuma, Chijiwa, Kunimi, Minamikushiyama and Mizuho (all from Minamitakaki District), were merged to create the city of Unzen.
Located at the foot of Mount Unzen, the area is famous for volcanic hot springs (onsen) named Obama Onsen and Unzen Onsen.