This work considers Karl Rahner’s theology of the person as hearer through a critical engagement with Julia Kristeva’s post-structuralist notion of the speaking subject. This offers an experimental exploration of contemporary theological understanding of subjectivity, with specific reference to ideas of relationality, and with a particular interest in the possibility of dialogue with post-structuralist ideas. From separate disciplines, with different tools and to different effects, Rahner and Kristeva reject the modernist cast of the human self. They demonstrate a common desire to explore subjectivity as a notion that has been problematised. In examining the person as hearer and the speaking subject together we discover a surprising number of areas of coherence as well as those of fundamental divergence. To this end we consider our theorisits’ pre-supposed arenas for human subjectivity, their epistemologies, and the importance each gives to language and otherness. We also examine how they relate intra- and inter-relationality. For Kristeva this involves a consideration of notions of the M/Other, the semiotic and the stranger in society. With Rahner we consider the social Trinity, the self-alienation of symbolism and the concept of neighbour-love. We suggest here that Rahner both pre-empts aspects of current theological interest in subjectivity and provides important resources that are especially useful in relating theology to post-structuralist notions.