Oraiokastro (Greek: Ωραιόκαστρο, also Oreokastro) is a municipality in the Thessaloniki regional unit, Greece, and a suburb of Thessaloniki.

The municipality Oraiokastro was formed at the 2011 local government reform by the merger of the following 3 former municipalities, that became municipal units:[2] The municipality has an area of 217.855 km2 and the municipal unit Oreokastro which is located 11 km north of Thessaloniki.

[3] The municipality has a population of 40,004 inhabitants according to the October 2021 census.

[4] The Temple of the Hellenic Gods (Ελληνων Ναος), a Hellenic temple, is located in Oraiokastro, Central Macedonia.

[5] This Central Macedonia location article is a stub.