IGN, formerly Imagine Games Network, is an entertainment website which focuses on video games, films, music and other media.

IGN or ign may also refer to:

• Institut géographique national, the French national geographic institute, now called Institut national de l'information géographique et forestière
• Instituto Geográfico Nacional (Guatemala), the Guatemalan national geographic institute
• National Geographic Institute (Peru), the Peruvian national geographic institute
• Instituto Geográfico Nacional (Spain), the Spanish national geographic institute
• Nationaal Geografisch Instituut - Institut Géographique National, the Belgian national geographic institute, often referred to by the abbreviation "IGN" in Walloon and "NGI" in Flemish

• Imperial German Navy, navy for the German Empire from 1871 to 1919
• Intergovernmental Negotiations framework, a process to reform the United Nations Security Council
• International-Great Northern Railroad (I&GN), a railroad in the US state of Texas
• Iodine Global Network, a nonprofit organization
• Maria Cristina Airport, serving the general area of Iligan, Mindanao, Philippines, IATA airport code IGN
• Initialization of in-game name

• IGE (Internet Gaming Entertainment), an MMORPG services company