The subject of this article is the case system reduction taking place in Balochi dialects spoken in Iran. Different dialects of Balochi are more or less heavily influenced by the state language Persian, and the case systems in several of these dialects find themselves in different phases of being restructured with the very reduced Persian case system as the model. Examples of this reduction are, e.g., that in one dialect the genitive case is totally lost in favour of the Persian ezafe-construction and that the case form used for the indirect object is frequently replaced by a prepositional phrase.