Hippotherapy, a treatment tool used by OTs, PTs, and Speech Therapists, is an understudied multisystem intervention, that addresses both the core impairments and sensorimotor comorbidities of children with ASD (Srinivasan et al., 2018). We conducted a preliminary study evaluating the effects of an 8-week hippotherapy intervention on the repetitive/maladaptive behaviors and communication skills of young children with ASD.