Background: Challenges in providing adequate dental care for individuals with Autism Spectrum Disorder (ASD) are recognised by parents, caregivers, and dental practitioners, leading to a higher prevalence of unaddressed dental needs. This scoping review aims to explore existing research on the obstacles to oral health care as perceived by individuals with ASD, as reported by their parents, caregivers, and dental professionals. Methods: Systematic searches were conducted in DOSS, Medline, and PubMed databases using relevant keywords to identify relevant studies. Barriers identified within these studies were then categorised based on themes identified. Results: The initial search yielded a total of 254 studies. Following the removal of duplicates and screening of titles and abstracts, 47 studies were further assessed against predetermined criteria, ultimately resulting in the inclusion of 16 articles in this scoping review. The identified barriers were grouped into five overarching themes: challenges in accessing appropriate care (n = 8), negative past experiences (n = 5), parental perceptions of the impact of ASD (n = 8), clinician bias (n = 2), and clinician education (n = 7). Conclusions: The findings of this review highlight the obstacles faced by individuals with ASD in obtaining routine oral health care. These results underscore the imperative for the development, testing, and implementation of tailored interventions focused on autism, as well as their integration into educational curricula for dental practitioners at various educational levels. This approach aims to enhance the delivery of equitable oral health care to individuals with ASD, starting from undergraduate through to postgraduate dental education.