No. 7 may refer to:
- No. 7 Squadron IAF, an Indian Air Force unit
- No. 7 Squadron RAAF, a Royal Australian Air Force unit
- No. 7 (brand), a Boots UK own label
- No.7-class minesweeper (1938)
- Japanese minesweeper No. 7, several ships
- No. 7 refers to Cricketer MS Dhoni
- No. 7 refers to Footballer Cristiano Ronaldo