| 1/1/1959, Thu | New Year's Day |
- Note
- A statutory public holiday (Awal Tahun Masihi).
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| 2/9/1959, Mon | Isra' and Mi'raj: Actual Observance Day |
- Note
- A statutory public holiday commemorating the Prophet Muhammad's night journey and ascension.
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| 2/9/1959, Mon | Chinese New Year: Actual Observance Day |
- Note
- A statutory public holiday (Tahun Baru Cina).
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| 2/23/1959, Mon | National Day of Brunei Darussalam |
- Note
- A statutory public holiday (Hari Kebangsaan).
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| 3/11/1959, Wed | First Day of Ramadan |
- Note
- A statutory public holiday (Awal Ramadan).
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| 3/30/1959, Mon | Nuzul Al-Quran: Actual Observance Day |
- Note
- A statutory public holiday commemorating the revelation of the Qur'an.
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| 4/11/1959, Sat | Hari Raya Aidil Fitri (Day 2) |
- Note
- A statutory public holiday.
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| 4/13/1959, Mon | Hari Raya Aidil Fitri (Day 1): Actual Observance Day |
- Note
- A statutory public holiday.
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| 4/13/1959, Mon | Hari Raya Aidil Fitri (Day 3): Actual Observance Day |
- Note
- A statutory public holiday.
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| 6/1/1959, Mon | Royal Brunei Armed Forces Day: Actual Observance Day |
- Note
- A statutory public holiday.
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| 6/17/1959, Wed | Hari Raya Aidil Adha |
- Note
- A statutory public holiday.
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| 7/7/1959, Tue | Islamic New Year |
- Note
- A statutory public holiday.
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| 7/15/1959, Wed | H.M. The Sultan's Birthday |
- Note
- A statutory public holiday. H.M. Sultan Haji Hassanal Bolkiah's Birthday (born 15 July 1946).
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| 9/15/1959, Tue | Prophet Muhammad's Birthday |
- Note
- A statutory public holiday (Maulud Nabi Muhammad SAW).
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| 12/28/1959, Mon | Christmas Day: Actual Observance Day |
- Note
- A statutory public holiday.
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