Sector Seven, Sector 7, or variations thereon may refer to:
- Sector 7 (book), a wordless picture book created and illustrated by David Wiesner
- Sector 7 (film), a 2011 South Korean 3D science fiction action film directed by Kim Ji-hoon
- Sector 7, one of eleven geographical areas of Bangladesh during the Bangladesh Liberation War
- Sector Seven, a fictional US government agency in the 2007 film Transformers
- Sectorseven, a Canadian punk band from and in Grimsby, Ontario
- Sectorseven (album), the third studio album by Sector Seven
- SECTOR-07 (Fictional location), the fictional location Criminality (Made in popular Game Platform Roblox) is set in.