| Acronym | Definition |
|---|
| IGS➣International Graduates Scheme (UK) |
| IGS➣Institute of Governmental Studies |
| IGS➣Indiana Geological Survey (Bloomington, IN) |
| IGS➣IBM Global Services (IBM consulting organization) |
| IGS➣Internet Go Server |
| IGS➣International Glaciological Society |
| IGS➣Initial Graphics Exchange Specification |
| IGS➣Inter Graphics Systems |
| IGS➣Interchange Group Separator |
| IGS➣Ibm Global Services |
| IGS➣Intergraph Government Solutions (Madison, AL) |
| IGS➣Internet Graphics Server |
| IGS➣Information Gas Station (Helsinki, Finland) |
| IGS➣Image-Guided Surgery |
| IGS➣Institute for Global Studies |
| IGS➣Inert Gas System (tankers) |
| IGS➣International Geosynthetics Society |
| IGS➣Istanbul Giyim Sanayi (Turkish: Istanbul Clothing Industry) |
| IGS➣Institute of the Good Shepherd (est. 2006) |
| IGS➣Institute of Geological Sciences |
| IGS➣Institutional Grants Scheme (Australia) |
| IGS➣Information Gateway Services (Internet service provder; Canada) |
| IGS➣Ipswich Grammar School (Australia) |
| IGS➣Information Gathering Satellite (Japan) |
| IGS➣Institute of General Semantics |
| IGS➣International Genetic Standard (biology) |
| IGS➣Inertial Guidance System |
| IGS➣Innovative Gas Systems |
| IGS➣Informatics Graduate School (UK) |
| IGS➣International Ground Station |
| IGS➣International Gemological Symposium (Gemological Institute of America) |
| IGS➣Israel Geological Society |
| IGS➣Inspection Général des Services (French police) |
| IGS➣Identify Graphic Subrepertoire (ITU-T) |
| IGS➣Imerslund-Grasbeck Syndrome |
| IGS➣Improved Gray Scale |
| IGS➣Integrated Gaming System |
| IGS➣International Genealogical Search |
| IGS➣Integrated Graphics System |
| IGS➣Integrated Gateway Server (Cisco) |
| IGS➣Internet Gaming System |
| IGS➣Indiana Gourd Society |
| IGS➣Information Generation System |
| IGS➣International Geranium Society |
| IGS➣Internal German Service (Pan Am's domestic network in West Germany 1950-1990) |
| IGS➣Intermountain Generating Station (Delta, UT) |
| IGS➣Intermediate General Support |
| IGS➣IGES (Initial Graphics Exchange Specification) Format (file extension) |
| IGS➣Idaho Gourd Society |
| IGS➣Integrated Geo Systems (computational architecture) |
| IGS➣Imagery & Geospatial Support (NIMA) |
| IGS➣Inner Glide Slope |
| IGS➣Interactive Graphics Subsystem |
| IGS➣Improved Guidance System |
| IGS➣International GNSS (Global Navigation Satellite Systems) Service (formerly International GPS Service) |
| IGS➣Inacom Government Systems, Inc. |