Mukim Liang's is a «mukim» located in the Belait District of Brunei Darussalam. It is made up of three villages; namely Kg Lumut I, Kg Lumut II and Kg Sg Liang. The Penghulu or the Head of the Mukim is name Tuan Hj Awg Abdul Hamid bin Awg Hj Mumin. The Mukim Liang are divided into three villages and has it own head villages or called «Ketua Kampong» and are looked after by Yang Berhormat Awang Haji Mohd Shafiee bin Ahmad for the head of Kg Lumut 1 and Yang Mulia Awang Abd. Rahman bin Hashim is the head of Kg Lumut II. For Kg Sg Liang, the Ketua Kampong is not yet been occupied since the Ketua Kampong had passed away.
All of the above ketua kampong mentioned will report it to the Penghulu for any unsolved problems or we can say, the Penghulu is the leader for all the Ketua Kampong in Mukim Liang.