In Western societies, punk represented a benchmark for rupture towards the existing social structure while providing a soundtrack for it. So, it is in this context that we will approach the Portuguese punk considering its importance in a society engaged in relatively recent processes of democratization and modernization. Thus, we propose here to take a look at the punk from its protagonists' discourses and the text that they form. We will consider the words used by the bands in two ways: when they name themselves and their lyrics. In each case, we will deal with the self-representation issues in the light of the polarity between identity and difference: who we are, how we position ourselves, how we distinguish ourselves, what we have to say about ourselves, our time and our world; what are our values and what we have to say regarding the dominant social values; which causes move us, how we want to act, how we want the world to be. As in any other discursive self-representation, the content is not independent of the forms of expression. Therefore, the identification and dialogue questions (who is speaking, who is he or she speaking to) and the language questions (how does the speaker express, with which codes, in which forms) are also examined. Our analysis suggests that the punk discourse on identity tends to be structured by three main axes: a) cosmopolitanism, b) the radical assumption of an irreducible difference regarding social order and c) an ambivalent attitude towards politics and the political action.