Pierioi () is a former municipality in Pieria,

Greece Greece, officially the Hellenic Republic, is a country in Southeast Europe. Located on the southern tip of the Balkan peninsula, it shares land borders with Albania to the northwest, North Macedonia and Bulgaria to the north, and Turkey to th ...

. The seat of the municipality was in Ritini. Since the 2011 local government reform it is part of the municipality

Katerini Katerini (, ''Kateríni'', ) is a city and municipality in northern Greece, the capital city of Regional Unit of Piera in Central Macedonia, Greece. It lies on the Pierian plain, between Mount Olympus and the Thermaikos Gulf, at an altitude ...

, of which it is a municipal unit. The 2021 census recorded 1,656 residents in the municipal unit. The municipal unit has an area of 112.943 km².

References

Populated places in Pieria (regional unit) Katerini {{CentralMacedonia-geo-stub