This paper traces out the heroism and the process of self-creation that the hero, Christy Mahon in The Playboy of the Western World written by John Millington Synge, carries his journey through. Before Synge’s plays, the legendary heroes in Irish storytelling tradition have shown that they had innate physical capability and autonomy in the face of many obstacles. Commentators have never mentioned about the community’s desire and contingent values, which can turn some private individual into a hero. Christy’s process of self-creation in Synge’s play is to a great degree influenced by the community called Mayo. In this sense, the heroism Synge has described can be interpreted as a result of the interaction between the community and Christy Mahon. Furthermore, the author shows the cultural politics, because through the play he offers the new meaning of heroism his country may need in the future.