This chapter locates, in the wider context of critical theory, the practice-based approach to rhythm of choreographer and movement-thinker Rudolf Laban. In doing so, its aim is both to add a significant and overlooked voice to the ongoing debate on rhythm as it has unfolded in Western thought, and to argue for the value of a practitioner’s insight into an otherwise prominently if not exclusively theoretical discourse. Laban’s work in define and understand rhythm is here discussed in relation to his politics, his artistic output and his philosophy through an exploration and analysis of his unpublished manuscripts and diagrams held at the National Resource Centre for Dance at the University of Surrey.