| Acronym | Definition |
|---|
| NBR | Number |
| NBR | Nightly Business Report (PBS show) |
| NBR | Nitrile Rubber (synthetic) |
| NBR | National Board of Revenue (Bangladesh) |
| NBR | National Business Review (New Zealand weekly business newspaper) |
| NBR | Network-Based Recording |
| NBR | National Board of Review |
| NBR | Not Biking Related |
| NBR | Nilgiri Biosphere Reserve (India) |
| NBR | Nitrile Butadiene Rubber |
| NBR | National Bureau of Asian Research |
| NBR | Numbering |
| NBR | North British Railway |
| NBR | National Bank of Romania |
| NBR | National Board of Review of Motion Pictures |
| NBR | New Business Request (various locations) |
| NBR | Neutral Base Region |
| NBR | Nonborrowed Reserves (banking) |
| NBR | Not Baby Related (mommy message board) |
| NBR | Nottaway-Broadback-Rupert (Canada, hydroelectric dam complex) |
| NBR | No Beers Required |
| NBR | Natural Background Radiation (radioactivity) |
| NBR | Butadiene-acrylonitrile copolymer rubber |
| NBR | National Burn Repository |
| NBR | Narrow Band Receiver |
| NBR | Navigation Base Reference |
| NBR | Not Business Related |
| NBR | New Britain Transportation, Inc. |
| NBR | National Broadcast Radio |
| NBR | New Better than Used |
| NBR | National Benefit Resources Group |