GNR may refer to:
Military and paramilitary
- Gunner (rank)
- National Republican Guard (Italy) (Italian: '), active during World War II
- National Republican Guard (Portugal) (Portuguese: ')
Music
- GNR (band), a Portuguese rock band
- Guns N' Roses, an American hard rock band
Transport
- Dr. Arturo Umberto Illia Airport, serving General Roca, Río Negro, Argentina
- Gambia International Airlines
- Great North Road (disambiguation)
- Great Northern Railway (disambiguation)
- Great Northern Railway of Canada
- Great Northern Railway (Great Britain)
- Great Northern Railway (Ireland)
- Great Northern Railway (Queensland) in Australia
- Great Northern Railway (U.S.), now part of the BNSF Railway system
- Green Road railway station, in England
Other uses
- Galaxy News Radio, a fictional radio station in Fallout 3
- Great North Radio, a radio station in North East England
- Graphene nanoribbon
- Great North Run, a half marathon in north-east England