What does the word of the cross mean for philosophical anthropology? That is my question in this dissertation, which undertakes a philosophical engagement with a word that is both a scandal and folly for philosophical wisdom. My task is to give a hermeneutical description of what I call the cruciform self, and to examine the significance of the cross for several key themes of philosophical anthropology. Because my focus is thematic, I engage with several interlocutors--most prominently Paul Ricoeur and Dietrich Bonhoeffer, but also Luther, Kierkegaard, Heidegger, Levinas, and Charles Taylor. Given the pronounced theological aspects of this project, a recurring theme is the relation between philosophy and faith, reason and revelation. The word of the cross interrogates anthropology as well as philosophy, and so I present a hermeneutics of the cruciform self as well as a distinctly cruciform philosophy. Chapter 1 outlines the hermeneutical turn in philosophical anthropology, and argues that the self is constituted in being addressed by an external word. Chapter 2 then draws on Luther's theology of the cross to sketch an ontology of justification by faith, in which the self is constituted by eschatological possibility rather than achieved actuality, and stands outside of itself with its identity in another, in promise rather than presence. Chapter 3 interprets sin and evil according to the image of incurvature--i.e., the self curved in on itself, cut off from its true relations to God, others, and itself. Chapter 4 then argues that this incurvature must be broken open by an external word. There I draw on Bonhoeffer's phenomenological christology, which identifies this word as Christ, the Counter-Logos who reverses the intentionality and interrogation of the immanent human logos. The chapters in Part II then use Bonhoeffer's account of the ultimate and the penultimate to show how the word of the cross refigures philosophical thinking about the concreteness and continuity of faith (Ch.5), human capability, agency, and ethical responsibility (Ch.6), reflexivity, self-understanding, and intentionality (Ch.7), and the tension between faith and religion (Ch.8).