IGN (disambiguation)
- Flemish dialects
- IGE
- IGN
- Imperial German Navy
- Institut géographique national
- Instituto Geográfico Nacional (Guatemala)
- Instituto Geográfico Nacional (Spain)
- Intergovernmental Negotiations framework
- International-Great Northern Railroad
- Iodine Global Network
- Maria Cristina Airport
- Nationaal Geografisch Instituut - Institut Géographique National
- National Geographic Institute (Peru)
- User (computing)
- Walloon language