The rising prevalence of autism spectrum disorders (ASD) warrants a greater level of clinical attention to best treat those with ASD. The characteristics of ASD lead to impairment for both the child with the disorder and his/her family. To effectively treat children with ASD, parents need to be included in intervention efforts. Research suggests that parental involvement in treatment improves the generalizability of skills and increases the amount of intervention the child receives. Numerous benefits have been found in child and parent outcomes when parents are included in treatment. The purpose of this paper is to discuss the impact ASD can have on the parent-child relationship, the factors that influence treatment outcome, and the advantages of including parents in treatment. The different roles parents can have in treatment will also be discussed along with providing clinicians guidance on practical ways to involve parents in the treatment of children with ASD. (Contains 1 table.)