The Horrea Galbae were warehouses (horrea) in the southern part of ancient Rome, located between the southern end of the Aventine Hill and the waste dump of Monte Testaccio. They ran for a substantial distance, possibly extending as far as the Porta Ostiensis in the east and the Porticus Aemilia on the banks of the Tiber. The horrea were most likely built on the site of a suburban villa owned by the Sulpicii Galbae, a distinguished noble family of whom the 1st century AD Roman Emperor Galba was a member. (There are many alternative spellings of the name: Galbana, Galbiana, Galbes and so on.)
The tomb of Servius Sulpicius Galba (probably the consul of 108 BC, rather than his better-known father of the same name) stood in front of the warehouse complex. It is not clear when the horrea were founded, but presumably it was some time after the tomb was built. The complex was probably originally known as the Horrea Sulpicia, after the nomen of the gens Sulpicia, but acquired its later name during the time of the emperor Galba.