As a new political, economic and professional area, the Common Market of the South is also a new linguistic and cultural area, a place of many references. The idea that a sense of belonging to the common market is found in embryonic form in each national culture is pure fiction. Besides, the resurgence of innermost identities within the member-states proves that the Mercosur identity can be neither universal, which would mean denying the differences, nor specific, which would help to exacerbate them. It is obvious that the problem is far from being simple. The outcome of this quest for identity will depend on the ability to carefully handle an area of cultural diversity and a place of common allegiance without losing the sense of Mercosurian citizenship.