People with autism spectrum disorders have difficulties with communication, behaviour and social interaction, and many also experience abnormal responses to sounds. The purpose of this review was to assess the evidence for the effectiveness of auditory integration therapy and therapies like it that have been developed to improve abnormal sound sensitivity and autistic behaviours in such individuals. Seven relatively small studies met the inclusion criteria for the review. These often measured different outcomes and reported mixed results. Benefits for participants receiving auditory integration therapy were only reported in two studies, involving 35 participants, for two outcomes. A study of Tomatis therapy did not measure behavioural outcomes and did not find any difference in language development between intervention and control groups. As such, there is no evidence to support the use of auditory integration therapy or other sound therapies at this time.