Recent interest in gesture has led to an understanding of the development of gesture and speech in typically developing young children. Research suggests that initially gesture and speech form two independent systems which combine together temporally and semantically before children enter the two-word period of language development. However, little is known about gesture development in children's disordered speech. This paper presents two case studies of young children with autism. The children are under 3 years of age and attend an intervention programme to facilitate their social and communication development. Early indications suggest that whilst both gesture and speech development is delayed in children with Autistic Spectrum Disorders (ASD), the developmental trajectory is the same as for typically developing children.