Abstract: Nationalism is an emotive issue for entire world community. Ever since the fall of Ottoman Empire Unity of Arabs has been important for Western community. This Article discusses the Journey of Arab Nationalism Journey Since the fall of Ottoman Empire and tried to discuss its various aspects. It has also dwelt upon Present meaning of Nationalism for Arabian Community as well as for Countries in the region. The consciousness of the Arabs for one nation began during the later years of Ottoman Empire -- especially during early 19th and late 20th century. This consciousness grew as soon as the imperialist West took control of West Asia and North Africa. The Arabs were assured that West had cheated them by supporting their revolt against Ottomans when the Ottomans Empire still drew vast admiration throughout the Arab World as an Islamic Empire. Arab nationalism exists through changing definitions. Throughout its history, Arab Nationalists defined Arab Nationalism according to the flow of tide. First it began as a revolt against Ottoman Empire. Then, a struggle for political unity, and simultaneously, independence from colonial occupation. Then, solidarity and cooperation among the different Arab States created by colonists. And finally after the humiliating defeat at the hands of Israel, Arab Nationalists reduced it to modernising