The gender marking in Rongmei Naga is purely lexical and suffixing phenomenon without any grammatical implication. The main of this paper is to describe the gender system of Rongmei, a Tibeto-Burman language spoken in the three states of North Eastern India, viz., Assam, Manipur, and Nagaland. My study will be confined in the Cachar District of Assam, where more then 30 Rongmei inhabitant villages are there.