Definition of gretna:
(n) :
A small town in Dumfries and Galloway council area, Scotland, to the south of the more famous village of Gretna Green.
(n) :
An unincorporated urban community in Manitoba, Canada, on the border with North Dakota, USA.
(n) :
A city, the parish seat of Jefferson Parish, Louisiana, United States.
(n) :
A city in Sarpy County, Nebraska, United States.
(n) :
A small city in Gadsden County, Florida, United States.
(n) :
An unincorporated community in Phillips County, Kansas, United States.