IGS
IGS may stand for:
Computers/Video Games
- Internet Go Server
- Information Gateway Services, an Internet Service Provider
- Information Global Service, video game company
- Initial Graphics Exchange Specification and the file extension thereof (.igs)
- Interactive geometry software
- International Games System, a Taiwan-based arcade and PC video game developer, founded 1989
Technology
- Inertial guidance system
- Instrument guidance system
- Image guided surgery or computer assisted surgery
- Information Gathering Satellites, Japanese military reconnaissance satellites
Science
- Institute of General Semantics
- Institute of Geological Sciences (disambiguation)
- Intergenic spacer
- International Glaciological Society
- International Graphonomics Society
- International GNSS Service, a voluntary worldwide federation of agencies to share GNSS satellite tracking stations data and analysis centres.
Schools
- International Grammar School, Sydney
- Ilkley Grammar School
- Ipswich Grammar School
- Ivanhoe Grammar School
- Islington Green School
Other
- Imerslund-Gräsbeck syndrome
- Irish Georgian Society
- International Graduates Scheme, a UK immigration scheme