With the introduction of global markets, the significance of parallel importation has become amplified. Parallel imports have relation with variety of practical matters such as legal, marketing and economic issues. In practice, it promotes healthy competition and it also forces to reduce the price of products; as a result, consumers can enjoy wider- price range and variety of varieties of goods. However, with the technological advancement of communication system, the whole world is becoming one global market where price discrimination strategies in different countries have become harder. These technical developments also accelerate innovative business models. It may be predicted that parallel import may lose its importance in the future world. This paper mainly focuses on the concept of parallel imports in trademark and its effects. It also enlightens legal provisions and some of the most important cases regarding parallel importation in different jurisdiction particularly in United States, European Union and Australia.