The present article aims to provide a synchronic study of the inflectional or morpho-syntactic categories of noun in Sistani dialect. These categories comprise person, number, gender or noun class, definiteness, case, and possession. Linguistic data was collected via recording free speech, and interviewing with 30 (15 females, 15 males) illiterate Sistani language consultants of age 40–102 years, living in central (Markazi) district of Zabol city in Sistan and Baluchestan province of the Islamic Republic of Iran. The research results indicate that nouns are inflected in three distinct persons i.e. first, second, and third persons with either singular or plural in number. Grammatical gender of nouns takes no specific morphological marker. As to the category of definiteness, this dialect makes use of syntactic devices (like demonstrative adjectives), and/or morphological devices (such as the use of /=ak/ and /=e/ clitics) to display the definite and indefinite nouns. Its case system is nominative-accusative system. In this regard, only the accusative or objective case marking is morphologically realized by the object marker /=a/. In addition, possession is expressed through the use of the word /mAl=e/ ‘belonging to’ or the preposition /az/ ‘from, of’ along with nouns/noun phrases/personal pronouns and also applying ezɑfe - construction in the form of genitive structure.
