Pengiran Abdul Momin bin Pengiran Othman[a] (9 March 1923 – 9 March 2006) was a diplomat, educator, and noble politician renowned for his distinguished career, which included serving as the confidential clerk to Sultan Omar Ali Saifuddien III in 1961, private and confidential secretary to Sultan Hassanal Bolkiah from 1968 to 1992, and ambassador of Brunei to Indonesia from 1993 to 2001.

[3] He enrolled as a student at the Sultan Idris Training College (SITC) in Tanjong Malim from October to December 1941, but was forced to leave to his country with the outbreak of the Second World War.

[4] He also served on the scholarship committee, which enabled him to select students for Madrasah Aljunied Al-Islamiah in Singapore and Brunei’s Government English Schools.

[6] Around 1992, Pengiran Abdul Momin served as deputy president of the Persatuan Kesatuan Islam Brunei before being recalled to government service.

He was appointed ambassador to Indonesia, serving from 1993 to 2001,[3] during which he signed the agreement that established diplomatic relations between Brunei and North Korea on 7 January 1999.

[15] Sultan Hassanal Bolkiah approved the appointment of new LegCo members on 31 August 2005, with the dissolution of the previous council announced by the Prime Minister's Office on 1 September.

[5] Other notable guests included members of the royal family such as Prince Abdul Malik, and Princess Masna Bolkiah were also in attendance.

[5] Pengiran Abdul Momin was married to Datin Hajah Masurai binti Mohammad, and together they have 17 children, comprising 9 boys and 8 girls.