Bintulu Division is one of the twelve administrative divisions of Sarawak, Malaysia. It has a total area of 12,166.2 square kilometres, and is the third largest division after Kapit Division and Miri Division. Bintulu Division consists of two districts which is Bintulu and Tatau, together with a sub-district under Bintulu, which is Sebauh. Three major towns in Bintulu are Bintulu, Tatau and Sebauh.

Sebauh is a district of Bintulu Division, Sarawak, Malaysia. It shares a boundary with Miri, Baram, Kapit Division, Belaga and Tatau. It has a total area of roughly 5,262.90 square kilometres. Sebauh town is a main administrative and economy centre of Sebauh district.