Brunei–Malaysia relations
Brunei  | 
Malaysia  | 
|---|---|
| Diplomatic mission | |
| Bruneian High Commission, Putrajaya | Malaysian High Commission, Bandar Seri Begawan | 
| Envoy | |
| High Commissioner Mahmud Saidin | High Commissioner Raja Reza Zaib Shah | 
Brunei and Malaysia established diplomatic relations in 1984. Brunei has a high commission in Putrajaya, as well as consulate-generals in Kota Kinabalu and Kuching. Malaysia maintains a high commission in Bandar Seri Begawan. Both countries are full members of ASEAN and the Commonwealth of Nations. The two countries share a land border on the island of Borneo. Both countries are majority ethnic Malays and maintain excellent and close economic, cultural, political and defence ties.