Pangaio () is a municipality in the Kavala regional unit, Greece, named after the Pangaion hills. The seat of the municipality is in Eleftheroupoli.
The municipality Pangaio was formed at the 2011 local government reform by the merger of the following 5 former municipalities, that became municipal units:
The municipality has an area of 701.427 km<sup>2</sup>, the municipal unit 79.634 km<sup>2</sup>.
The province of Pangaio () was one of the provinces of the Kavala Prefecture. It had the same territory as the present municipality, except a part of the municipal unit Eleftheroupoli. It was abolished in 2006.