The following lists events that happened during 2025 in Brunei.

Photo	Post	Name
	Sultan of Brunei	Hassanal Bolkiah

Source:^[1]

• 1 January – New Year's Day
• 27 January – Isra' and Mi'raj
• 29 January – Chinese New Year
• 23 February – National Day
• 1 March – Ramadan
• 18 March – Nuzul Al-Quran
• 30 March to 1 April – Eid al-Fitr Holiday
• 31 May – Armed Forces Day
• 5 June to 9 June — Eid al-Adha
• 26 June – Islamic New Year
• 15 July – His Majesty the Sultan's Birthday
• 5 - 6 September – Prophet Muhammad's Birthday
• 25 December – Christmas Day

• Online calendar