BRN

The initials BRN may refer to:

• Bahrain, IOC country code
• Barisan Revolusi Nasional, an independence movement in Thailand
• Berne Airport, Switzerland, IATA airport code
• Brunei, ISO 3-letter country code
• Bulk Richardson number, in meteorology
• Bunte Republik Neustadt, a former micronation in Dresden, now a festival

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