TRO or tro may refer to: Music Tro (instrument), Cambodian string instrument "Tro" (song), 1996, Marie Fredriksson The Richmond Organization, Inc., American music publisher
Other uses TRO (gene) or trophinin, a human protein involved in cell adhesion TRO (company), American architects , 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