Pengiran Muda Abdul Kahar (1922 – 16 April 1957) was a nobleman and civil servant from Brunei who served as the chairman of the Tujuh Serangkai ("seven branches") committee from 1953 to 1954,[1][2] tasked with gathering the perspectives of Bruneian citizens, both rural and urban, on the proposed Constitution of Brunei, compiling a comprehensive report, and advising Sultan Omar Ali Saifuddien III during its drafting.

[5] The Tujuh Serangkai, a committee that was formed by the Sultan in July 1953 to collect popular opinion throughout the nation, was the first step in drafting Brunei's codified constitution.

[6] The committee, led by Pengiran Muda Abdul Kahar,[1][7] summarised public comments and constitutional analysis in a 50-page report that was submitted on 23 March 1954.

On 17 April, at 7:30 a.m., a Malayan Airways aircraft transported his remains from the Singapore International Airport and touched down in Brunei Airport at 12:52 p.m. Before he left, a number of individuals paid their respects to his remains, including Abdul Aziz (representing William Goode), Burhanuddin al-Helmy, Abdul Hamid Jumat's wife, and representatives of the United Malay National Organisation.

John Orman Gilbert; Pengiran Muda Hashim and Pengiran Anak Mohamed Alam; members of the Royal Family; government officials; members of the State Council and Partai Rakyat Brunei; dignitaries from various nations; representatives from Kuala Belait and Seria; and others were among the approximately two thousand people who had gathered in various locations when the plane touched down at the airport.