Kampong Sungai Liang or simply Sungai Liang, is a village in Belait District, Brunei, about 40 kilometres (25 mi) from the district's principal town Kuala Belait and 20 kilometres (12 mi) from the oil town Seria. The population was 910 in 2016. It is one of the villages within Mukim Liang. The postcode is KC1135.