LHG may refer to:
- Lightning Ridge Airport, the IATA code LHG
- Bundesverband Liberaler Hochschulgruppen, a student association in the Federal Republic of Germany
- Lufthansa, the flag carrier of Germany
- Landhelgisgæslan, the maritime law enforcement agency of Iceland
- Liberty House Group, the holding company of Liberty Steel
- Logan Heights Gang, a street gang in San Diego, California
- Lunar horizon glow, a glow seen in Lunar sky during sunset