Legio septima Gemina (properly Geminia: Latin for "The Twins' Seventh Legion") was a legion of the Imperial Roman army. It was founded in AD 68 in Spain by the general Galba to take part in his rebellion against the emperor Nero. "Gemina" means the legion was dedicated to the legendary twin founders of Rome, Romulus and Remus, who were suckled by a she-wolf. The legion was deployed the city called Legio (modern-day León, Spain) in AD 74 and remained in Hispania to the end of the 4th century.
Tacitus calls the legion "Galbiana", to distinguish it from the senior Legio VII Claudia, but this appellation is not found on any inscriptions. It appears to have received the appellation of "Gemina" on account of its amalgamation by Vespasian with one of the German legions, not improbably the Legio I Germanica.
Between 86 and 89 the Legion was commanded by the future emperor and native of the region Trajan.
After serving in Pannonia and in the civil wars, it was settled by Vespasian in Hispania Tarraconensis, to supply the place of the Legio VI Victrix and Legio X Gemina, two of the three legions ordinarily stationed in the province, but which had been withdrawn to Germania. The Antonine Itinerary, Ptolemy, the Notitia Imperii, as well as a few inscriptions all state that its regular winter quarters, under later emperors, were at Leon; but there are numerous inscriptions to prove that a strong detachment of it was stationed at Tarraco (modern Tarragona), the chief city of the province. The following are a selection, in order of time: