Greek temples (Ancient Greek: Ναός, Naós "dwelling", semantically distinct from Latin templum ("temple") were structures built to house deity statues within Greek sanctuaries in ancient Greek religion. The temple interiors did not serve as meeting places, since the sacrifices and rituals dedicated to the respective deity took place outside them. Temples were frequently used to store votive offerings. They are the most important and most widespread building type in Greek architecture. In the Hellenistic kingdoms of Southwest Asia and of North Africa, buildings erected to fulfill the functions of a temple often continued to follow the local traditions. Even where a Greek influence is visible, such structures are not normally considered as Greek temples. This applies, for example, to the Graeco-Parthian and Bactrian temples, or to the Ptolemaic examples, which follow Egyptian tradition. Most Greek temples were oriented astronomically.
Between the 9th century BC and the 6th century BC, the ancient Greek temples developed from the small mudbrick structures into double porched monumental buildings with colonnade on all sides, often reaching more than 20 metres in height (not including the roof). Stylistically, they were governed by the regionally specific architectural orders. Whereas the distinction was originally between the Doric and Ionic orders, a third alternative arose in late 3rd century BC with the Corinthian order. A multitude of different ground plans were developed, each of which could be combined with the superstructure in the different orders. From the 3rd century BC onwards, the construction of large temples became less common; after a short 2nd century BC flourish, it ceased nearly entirely in the 1st century BC. Thereafter, only smaller structures were newly begun, while older temples continued to be renovated or brought to completion if in an unfinished state.