Onbetsu (音別町, Onbetsu-chō) was a town located in Shiranuka District, Kushiro Subprefecture, Hokkaido, Japan.

As of September 30, 2004, it had an estimated population of 2,821 and an area of 401.40 km.

On October 11, 2005, Onbetsu, along with the town of Akan (from Akan District) was merged into the expanded city of Kushiro.

Onbetsu is the location of the Onbetsu Power Station, a diesel-powered facility.

History

• 1919 - Established as a village
• 1922 - Renamed to Onbetsu Village
• 1959 - Becomes Onbetsu Town
• October 11, 2005 - Onbetsu was merged into the expanded Kushiro City