Marsal bin Maun (8 November 1913 – 28 March 2000) was a Bruneian politician and educator who served as the second Menteri Besar of Brunei from 1961 to 1962.

[3] A number of Brunei students were trained by the Japanese during their occupation of the country; they included Marsal, Yassin Affandi, A. M. Azahari, Pengiran Muhammad Yusuf, and Jamil Al-Sufri.

[2][6] Marsal was named Deputy State Secretary on 1 May 1960, and Acting Menteri Besar on 1 August 1961, a position he held until being confirmed on 1 September 1962.

[1][7] On 4 May 1960, he was among the 12 state diginitaries selected to become the Royal Regency Council, which they would carry out the duties of the Sultan of Brunei during his trip to the Federation of Malaya.

In his stead, the Sultan appointed two of his closest advisors: Pengiran Ali, the head of the Department of Religious Affairs, and Dato Marsal, then Acting Menteri Besar.

[8] On 31 March 1963, Dato Marsal led a group of scouts during the farewell ceremony for the departing British High Commissioner to Brunei, Sir Dennis White at Istana Darul Hana.

[9] On 6 December 1963, Scouts in the Belait District gathered in Padang Besar, to bid farewell to Angus MacKay Mackintosh.

The chief minister's office (Rumah Jerambak), Istana Darul Hana, and the central police station were the primary targets in the capital.

In a short while, the rebels consented to surrender and were promptly returned to the police station, where they managed to enter without incident despite considerable opposition.

The Chief Minister, Dato Marsal was at the police station at the time, so the Sultan asked them to bring their petition to him instead of accepting their request to meet him.

[13] Due to health concerns on 1 October 1965, Marsal was forced to take a leave while Pengiran Muhammad Yusuf was appointed as the acting Chief Minister.

[15] Several places were named after him, including: Awards Honours Marsal was posthumously granted the soubriquet Bapa Perlembagaan (Father of the Constitution).