| Acronym | Definition |
|---|
| NBN | National Broadband Network (Philippines) |
| NBN | Nagoya Broadcasting Network (Japan) |
| NBN | National Biodiversity Network (UK nature conservation) |
| NBN | Nefesh B'Nefesh (Jewish Souls United) |
| NBN | News Broadcast Network |
| NBN | Newbern (Amtrak station code; Newbern, TN) |
| NBN | National Broadcasting Network |
| NBN | Naughty By Nature (band) |
| NBN | Nothing but Noodles (restaurants; various locations) |
| NBN | National Bibliography Number |
| NBN | Next Big Nashville (music festival; Nashville, TN) |
| NBN | National Bingo Night (ABC-TV) |
| NBN | National Biospecimen Network |
| NBN | Narrow-Band Noise |
| NBN | National Black Network |
| NBN | Net-By-Net (route planning approach) |
| NBN | Nothing But Neopets (web site) |
| NBN | National Banking Network, Inc. (Virginia Beach, VA) |
| NBN | Naval Battleforce Network |