| Acronym | Definition |
|---|
| NOB | Newell's Old Boys (sports club and soccer team; Rosario, Argentina) |
| NOB | Nature of Business |
| NOB | Not on Board |
| NOB | Not Observed |
| NOB | Nord-Ostsee-Bahn (German railway) |
| NOB | Number of Branches |
| NOB | New Open Box |
| NOB | No Bits |
| NOB | Number of Overflow Blocks |
| NOB | Number of Bits |
| NOB | Northern Ontario Business (publication; Canada) |
| NOB | Nightmare of Battle (martial arts) |
| NOB | Notification of Birth (various locations) |
| NOB | North Office Building |
| NOB | New Office Building (various organizations) |
| NOB | Naval Operations Base |
| NOB | National Office Bearer (South Africa) |
| NOB | No Other Business |
| NOB | Naval Order of Battle |
| NOB | Narodno Oslobodilacka Borba (Russian: National Liberation Movement of Resistance) |
| NOB | Navy Operating Base |
| NOB | None On-Board |
| NOB | Northern Operating Base |
| NOB | Nuclear Order of Battle |
| NOB | North Of Boston Library System |
| NOB | Nuclear Oversight Board (various organizations) |
| NOB | Neck Righting Action on the Body |
| NOB | North of Border |