Nabia was a goddess of springs and rivers in the Lusitanian-Galician region, particularly venerated in the northwestern Iberian peninsula (modern northern Portugal and Galicia). The dedicatory inscriptions to her are concentrated in this region, with epithets sometimes connecting her to specific water-sources (Nabia Corona, Nabia Elaesurraega, and others). She was identified by the Romans with the Latin Diana, with Victoria, with Nymphae, and with Fortuna in different contexts — reflecting the breadth of her functions and the difficulty Roman administrators had in finding a single Mediterranean equivalent.
Her name Nabia is probably from a Celtic-Lusitanian root meaning 'flowing' or 'water' (cognate with various Celtic words for river and stream), and her function was that of the guardian of waters — both the rivers that nourished the agricultural lands and the springs that emerged from the earth. The northwestern Iberian peninsula is a region of abundant water-sources, with countless springs, streams, and small rivers; Nabia's cult was the regional expression of the religious importance of these waters to the local population.
The cult had both general and local aspects. As a general regional deity, Nabia was invoked across northwestern Iberia by the Lusitanian and Galician populations under both indigenous and Roman administration. As a local deity, she was tied to particular water-sources, with each sanctuary having its own epithet and its own rites. The pattern resembles that of Bandua and Reue (in previous entries), with the deity multiplied across local manifestations while retaining a recognizable common identity.
After the Christianization of northwestern Iberia, Nabia's cult was absorbed into the various water-related Christian devotions of the region (the cults of springs sacred to particular saints, the Marian devotions at certain water-sources). The continuity of holy waters across religious transitions is a deep pattern in European folk religion, and the Galician and northern Portuguese tradition of pilgrimages to springs preserves elements of the older Nabia-cult, transferred onto the Christian framework. The figure herself is preserved in the Roman-period inscriptions but has no specific medieval afterlife.



