This study provides an abstract look at the movement of Greek religion into Magna Graecia with the arrival of Achaean settlers in Southern Italy. Through an investigation into the proliferation of sanctuary construction in the nonurban territory of the colonies, it is evident that the sanctuaries were not only used for religious purposes, and served as symbols of the authority of the city. Metaponto, Croton, Sybaris, and Poseidonia are the colonies in question, whose systematic development relied on the construction of these sacred compounds. This study takes a twofold approach; by investigating the physical placement of sanctuaries in various areas around the chora, their functions will be extrapolated. In the Achaean colonies in Southern Italy, sanctuaries in the nonurban territory did have a sacred significance, but more importantly they demonstrated ownership over the areas they presided over, and thus aided in the delineation of the chora. Nonurban sanctuaries also held the responsibility of sustaining order amongst the outlying populations, bringing together Greeks and indigenous and serving as a mediator amongst them. Furthermore, the sanctuaries positioned at the frontiers of the territory strongly demonstrated the identity of the Greeks, reinforcing their claim to the land. Thus, dissimilar to their counterparts on mainland Greece, the sanctuaries constructed in the nonurban territory of the Achaean colonies were part of a clearly defined development plan, and serviced the political necessities of the Greeks above all. / Thesis / Master of Arts (MA)