TRO

• Tro (instrument), Cambodian string instrument
• "Tro" (song), 1996, Marie Fredriksson
• The Richmond Organization, Inc., American music publisher

• TRO (gene) or trophinin, a human protein involved in cell adhesion
• TRO (company), American architects
• Televisión Regional del Oriente, Colombian television network
• Tamils Rehabilitation Organisation
• Temporary restraining order, in American law
• Taree Airport, New South Wales, Australia (IATA code: TRO)
• Traffic Regulation Order, in the law of England and Wales

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