N9
- 9N (disambiguation)
- Fairey N.9
- Jero N° 9 Antwerpen 1911
- LNER Class N9
- London Buses route N9
- N postcode area
- N9 road (Belgium)
- N9 road (France)
- N9 road (Ireland)
- N9 road (Netherlands)
- N9 road (South Africa)
- Nebraska
- Nebraska Highway 9
- Negeri Sembilan
- Netscape Navigator 9
- Nokia N9
- Nonoxynol-9
- Northrop N-9M
- Northrop YB-35
- Number nine (disambiguation)
- U.S.