The present study examined the influence of attachment style, social support, and family resiliency on levels of stress, depression, and anxiety in parents who have children with autism. The study concentrated on investigating the impact of attachment anxiety, attachment avoidance, social support from family and friends, and family resiliency on stress, depression, and anxiety in parents who have children with autism. One hundred and eighty-nine participants, who were parents of children with autism and belonged to various local and national parent support organizations, filled out an online survey provided to them via email, newsletter, or group forum. Results showed that attachment avoidance, social support from friends, and family resiliency are significant predictors of stress. Furthermore, attachment anxiety, attachment avoidance, and family resiliency were indicated as being significant predictors of anxiety and depression. The findings from this study suggest that attachment style, family resiliency, and social support outside the family are important factors to consider in the psychological well-being of parents who have children with autism.