Gretna may refer to:
Places
Australia
- Gretna, Tasmania
Canada
- Gretna, Manitoba
Scotland
- Gretna, Dumfries and Galloway
- Gretna Green, Dumfries and Galloway
United States
- Gretna, Florida
- Gretna, Kansas
- Gretna, Louisiana
- Gretna, Nebraska
- Gretna, Ohio
- Mount Gretna, Pennsylvania
- Mount Gretna Narrow Gauge Railway
- Mount Gretna Heights, Pennsylvania
- Gretna, Virginia
Transportation
- Gretna Green railway station, a railway station in Gretna Green, Dumfries and Galloway, Scotland
- Gretna railway station (Border Union Railway), a former station
- Gretna railway station (Caledonian Railway), a former station
Other uses
- Gretna F.C., a now defunct Scottish football club
- Gretna F.C. 2008, a Scottish football club founded by the fans of the above
- Gretna (skipper), a genus of butterflies in the grass skipper family
- Gretna Campbell, American painter