Kampong Belais is a village in Temburong District, Brunei. The population is 109 in 2021. It is one of the villages within Mukim Bokok.
The name belais is a type of fish.
For census and postcode purposes Kampong Belais is established as two villages:
Kampong Belais shares a village head () with Kampong Buda-Buda.
The village mosque is Kampong Belais Mosque. The construction began in 1994 and completed in 1996. It can accommodate 300 worshippers.