Can it be stated that the unique nature of ancient Alexandrian culture was confirmed within its very language, to the point that one may talk of an “Alexandrian Greek”? This is the question that the author attempts to answer by gathering together and studying the linguistic particularities (lexical, above all) that the ancient authors, already aware of the issue, had pointed out. The specific nature of the city is presented within these peculiarities of language: the mores and character of its inhabitants, certain features of its urban tissue and material culture, the landscape of its hinterland and the economic activities attached to it. Whilst some may have arisen from the standard image that the Ancients circulated about this city and its population, others throw light on cultural or material realities that have sometimes escaped the notice of historians, papyrologists and archaeologists.