Igo
- Girawali Observatory
- Go (game)
- I-GO
- Igo (singer)
- Igo Chico
- Igo Etrich
- Igo Galama
- Igo Gruden
- Igo Sym
- Igo language
- Igo, California
- Igo, Kansas
- IndiGo
- Intergovernmental organization
- International Greenwich Olympiad
- Isebe language
- Jaime Ortiz Betancur Airport
- Low-cost carrier
- North London Grammar School