Dafnousia () is a former municipality in Phthiotis, Greece. Since the 2011 local government reform it is part of the municipality Lokroi, of which it is a municipal unit. The municipal unit has an area of 77.374 km2.
Dafnousia (formerly) was a separate municipality in Phthiotis, Greece, but after the 2011 local government reform it became part of the Lokroi municipality. This change resulted in Dafnousia becoming a municipal unit under Lokroi's jurisdiction. The area of Dafnousia remains unchanged at 77.374 square kilometers.