The intent of this essay is to shed light on the relevance and meaning of the concept of ”form” in Merleau-Ponty’s phenomenology. Drawing on his early texts as well as on the published notes of his first course held at the Collège de France, we argue that the notion of form essentially carries two meanings in the thought of the philosopher. One epistemological, stating that the perceived always assumes the figure-ground structure (signifying a figurative dimension of form). Another ontological according to which form designates the originary manifestation of the world in the event of expression (signifying a genetic dimension of form). Finally, we argue that the interplay of these two dimension of form lead Merleau-Ponty to an intuitive understanding of rhythm as the sensible manifestation of form, suggesting a potentially fruitful encounter, converging upon this notion, with the thought of Henri Maldiney.