This study examined parents’ implicit theories of intelligence and self-regulation from a person-centered perspective using latent profile analysis. First, we explored whether different belief profiles exist. Second, we examined if the emergent belief profiles differ by demographic variables and are related to parents’ failure beliefs, goal orientation, and co-regulatory strategies. Data were collected from N = 137 parents of preschoolers who answered an online survey comprising their implicit theories about the malleability and relevance of the domains intelligence and self-regulation. We (...) identified three belief profiles: profile 1 displayed an entity theory, profile 2 showed a balanced pattern of both domains of implicit theories, and profile 3 was characterized by high incremental self-regulation theories. Analyses showed that parents differed significantly in education and their perception of child self-regulatory competence depending on profile membership, with parents in profile 1 having the lowest scores compared to parents of the other profiles. Differences in parents’ failure beliefs, goal orientation, and co-regulatory strategies were also found depending on profile membership. Parents in profile 3 reported failure-is-enhancing mindsets, and mastery-oriented strategies significantly more often than parents in profiles 1 and 2. The results provide new insights into the interplay of important domains of implicit theories, and their associations with parents’ failure beliefs, goal orientation, and co-regulatory strategies. (shrink)