National mapping institutes

• Institut Géographique National, the French national geographic institute
• Instituto Geográfico Nacional (Guatemala), the Guatemalan national geographic institute
• Instituto Geográfico Nacional (Spain)
  Instituto Geográfico Nacional (Spain)
  The Instituto Geográfico Nacional , or National Geographic Institute is a Spanish government agency, dependent on the Spanish Ministry of Public Works...
  
  , the Spanish national geographic institute
• Nationaal Geografisch Instituut - Institut Géographique National, the Belgian national geographic institute, often referred to by the abbreviation "IGN" in French and "NGI" in Dutch

Imagine Games Network

• Imagine Games Network, a website that focus on news and reviews related to video games

Other uses

• An acronym used by online gamers for "In-Game Name"
• International-Great Northern Railroad