IGS

IGS may stand for:

Computers/Video Games

 * 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

 * Image guided surgery
 * Information Gathering Satellites, Japan
 * Instrument guidance system

Science

 * Institute of General Semantics
 * Intergenic spacer
 * International Glaciological Society
 * International Graphonomics Society
 * International GNSS Service

Schools

 * Ilkley Grammar School
 * International Grammar School, Sydney
 * Ipswich Grammar School
 * Islington Green School

Other

 * 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