Yakumo (八雲町, Yakumo-chō) is a town in Oshima Subprefecture, Hokkaido, Japan.
As of September 2016, the town's population was estimated as 17,299, with a density of 18 persons per km2.
On October 1, 2005, the town of Kumaishi was merged into Yakumo; now in the newly created Futami District.
The former town of Kumaishi joined Oshima Subprefecture at the same time.
Yakumo is the only municipality which faces both the Sea of Japan and the Pacific Ocean.