TRN

TRN is the abbreviation for

• Turin Airport in the IATA airport code
• Terrain Referenced Navigation , the terrain-based navigation
• Token Ring Network, an older networking technology for computer networks, see Token Ring
• Total Return Net, a type name for investment funds
• Transports Régionaux Neuchâtelois , a Swiss public transport company
• Turkish Republic of Northern Cyprus

This is a disambiguation page for differentiating between several terms identified with the same word.