Lopsi is the name of a
Liburnian[1][2] tribe inhabiting the mountains along the eastern coast of the
Adriatic before and during the
Roman Empire, specifically present-day
Velebit.[3]
The tribe was mentioned by
Pliny the Elder in his Naturalis Historia,[4][5] and it borrowed its name to one of the Roman cities on the coast,
Lopsica (present day
Sveti Juraj in
Croatia). The name has survived to present day as a place name, as well as the family surname Lopac.