Although meritorious, Naïve Realism faces theoretical issues stemming from the lack of clarity in the concepts forming its propositions and the relevant (but not usually acknowledged) diversity of its theses. In this paper, my goal is to provide a groundwork that mitigates these theoretical complications. One such distinction concerns its subject matter, in particular, whether it deals with the nature of perceptual episodes or their phenomenology. My first goal is to acknowledge such distinctions by delimiting the former option, which I (...) refer to as “Ontological Naïve Realism”. To accomplish this, I proposed a distinctively minimal version of this position. However, a thorough characterization of the acquaintance relation was necessary for its postulation, which revealed a diversity of the corresponding relations/predicates. This informed the postulation of the minimal thesis and thus the definition of Ontological Naïve Realism. Based on this definition, I also proposed a novel classification and taxonomy of the relevant forms of Ontological Naïve Realism, based on the width of the attribution of naïve-realistic features and whether or not they identify perceptions/illusions to acquaintance instantiations. (shrink)