Sector
- Area (disambiguation)
- Business sector
- Circular sector
- Cylinder-head-sector
- Disk sector
- Economic sector
- Foundation (book series)
- Hyperbolic sector
- James White (author)
- List of Star Trek regions of space
- Private sector
- Public sector
- Region (disambiguation)
- Sector (administrative division)
- Sector (instrument)
- Sector General
- Sector No Limits
- Sector clock
- Sector commander
- Sector light
- Sector, West Virginia
- Sector/Sphere
- Sectoria
- Spherical sector
- United States Coast Guard Sector
- Voluntary sector
- Zone (disambiguation)