| BR&O | Build Requirements & Objectives
| Others |
| BRO | Baltics, Russia, and Other countries
| Others |
| BRO | Basic Rights Oregon
| Others |
| BRO | Be Right Over
| Others |
| BRO | Beats Rhymes Originality
| Others |
| BRO | Beers R Open
| Others |
| BRO | Being a Reliable Officer
| Others |
| BRO | Bentley Brooklands
| Others |
| BRO | Big Rampant Organ
| Others |
| BRO | Big Red One
| Others |
| BRO | Bike Run Obstacle
| Others |
| BRO | Bikers Rights Organization
| Others |
| BRO | Blue Ringed Octopus
| Others |
| BRO | BMX Riders Organization
| Others |
| BRO | Border Road Organization
| Others |
| BRO | Border Roads Organisation
| Others |
| BRO | Border Roads Organization
| Others |
| BRO | Boring Rude Offending
| Others |
| BRO | Brabham Racing Organisation
| Others |
| BRO | Breault Research Organization
| Others |
| BRO | Bring Rhythm Outdoors
| Others |
| Bro | Brother
| Others |
| BRO | Brownsville/South Padre Island International Airport
| Others |
| BRO | Brownsville/South Padre Island International Airport, Brownsville, Texas USA
| Others |
| BRO | Building Responsible Officer
| Others |
| BRO | Business Relationship Officer
| Others |