Proper Noun is a part of speech that has an important role in syntax in any morphology. "Zia-un-Nabi" is a seven-volume book on the life and personality of Prophet Muhammad P.B.U.H, written by Pir Karam Shah Al-Azhari. It has a large number of proper nouns and unless they are explained in proper context, understanding the text becomes a bit difficult. This paper enlists and explains some important proper nouns used in "Zia-un-Nabi".