Gallia was a Romano-Gallic goddess, possibly related to the region of Europe known to the Romans as Gallia (Gaul

Gaul

Gaul was a region of Western Europe during the Iron Age and Roman era, encompassing present day France, Luxembourg and Belgium, most of Switzerland, the western part of Northern Italy, as well as the parts of the Netherlands and Germany on the left bank of the Rhine. The Gauls were the speakers of...

). The only evidence of her name to date is an altar set up at Vindolanda

Vindolanda

Vindolanda was a Roman auxiliary fort just south of Hadrian's Wall in northern England. Located near the modern village of Bardon Mill, it guarded the Stanegate, the Roman road from the River Tyne to the Solway Firth...

 by its auxiliary

Auxiliaries (Roman military)

Auxiliaries formed the standing non-citizen corps of the Roman army of the Principate , alongside the citizen legions...

 garrison of the 4th cohort

Cohort (military unit)

A cohort was the basic tactical unit of a Roman legion following the reforms of Gaius Marius in 107 BC.-Legionary cohort:...

 of Gauls

Gauls

The Gauls were a Celtic people living in Gaul, the region roughly corresponding to what is now France, Belgium, Switzerland and Northern Italy, from the Iron Age through the Roman period. They mostly spoke the Continental Celtic language called Gaulish....

, stationed there from the early 3rd century onwards. Its inscription reads:
Of which a free translation would be "The troops from Gaul dedicate this statue to the goddess Gallia with the full support of the British born troops".