Events in the year 2021 in Brunei.
Incumbents Sultan: Hassanal Bolkiah
Events Ongoing — COVID-19 pandemic in Brunei
Deaths
29 May – Cornelius Sim, Roman Catholic cardinal and apostolic vicar of Brunei. (b. 1951). 15 June – Muslim Burut, recipient of the S.E.A. Write Award and Mastera Literary Award. (b. 1943).
References