This article examines the structural homologies between Lacan's concept of the Real and Harman's notion of the withdrawn object in Object-Oriented Ontology (OOO). Though emerging from distinct disciplinary traditions, psychoanalytic theory and speculative metaphysics, both concepts congregate upon a shared formal topology in which the fundamental dimension of any entity is inaccessible, exceeds every relational profile, and remains irreducible to symbolic or descriptive capture. The article identifies five principal homologies: inaccessibility as a positive ontological structure rather than an epistemic limitation, constitutive non-exhaustibility, causal productivity through withdrawal, resistance to systematic integration, and non-relationality as a primary ontological determination. These homologies are cohesive under the concept of ex-sistence, a structural position outside but foundational to any system, which both frameworks independently articulate. The article also attends to the limits of homology, noting significant differences regarding the role of the subject, the universalisation of withdrawal, and divergent attitudes toward formalisation. The convergence of these two traditions suggests that the critique of relational ontology represents a philosophical pressure that thought is compelled to address from within its own limits.