One of the main instances of Industrial property, as one of the two branches of intellectual property law, is Trade Name which takes into account a very valuable asset of trade markets. In spite of this importance, the concept of Trade Name has been used incorrectly by some concepts like, Trade Mark, Geographical indication, Domain name, Brand and Trade registration in some internal and international texts and it (improper use) is seen, even in some specialized intellectual property writings, too. Perhaps, non stipulation to the concept of Trade Name in the international conventions related to the intellectual property is one of the main reasons of this improper use. Further than theoretic aspect, the distinction between Trade name and similar concepts, have a practical aspect for legislatures as well as the owners of Trade names too; so the present article aims at filling the existing shortage in the legal literature of the state at this field, by defining the concept of Trade Name (First paragraph) and it’s distinction between similar concepts (Second paragraph), according to a comparative and analytical study.