Self-acceptance among parents of children with special needs is an important factor in supporting the quality of parenting and the child's development. Theoretically, social support acts as a protective factor that helps individuals psychologically adapt to stressful situations. However, previous research findings have shown inconsistent results, particularly among parents with children with diverse special needs. This study aims to examine the relationship between social support and self-acceptance among parents of children with special needs in Yogyakarta. The research uses a quantitative approach with a correlational design. The research population consisted of 2,633 parents, with a sample of 178 respondents selected thru cluster random sampling technique. The research instruments consisted of a social support scale (including emotional, instrumental, informational, and esteem aspects) and a self-acceptance scale, which were developed based on relevant theoretical concepts. Data analysis used Pearson Product Moment correlation after meeting the normality and linearity assumption tests. The research results show a significant positive relationship between social support and self-acceptance (r = 0.712; p < 0.05), indicating that the higher the social support received, the higher the level of self-acceptance among parents. These findings underscore the importance of social support as a factor related to the psychological adjustment process of parents of children with special needs. The implications of this research highlight the need to strengthen the social support system involving families, schools, and communities to enhance the psychological well-being of parents.