IGS may stand for:
Computers/Video Games
edit- Information Global Service, Japanese video game company
- Initial Graphics Exchange Specification, file extension .igs
- InteGraphics Systems a former chip manufacturer
- Interactive geometry software
- Internet Go server, for the game of Go
- IGS Go server, Japanese Go server
Technology
editScience
editSchools
editOther
edit- Imerslund-Gräsbeck syndrome
- International Graduates Scheme, a UK immigration scheme
- Irish Georgian Society
- Ingolstadt Manching Airport, is a military airbase with civil usage located in Manching near Ingolstadt, Germany