Many autistic individuals choose to practise mindfulness, and there is some evidence that mindfulness-based interventions can support the wellbeing of autistic adults. However, there is no extant guidance about how mindfulness teachers might support autistic individuals who attend their mindfulness courses, or about adaptations to the mindfulness components of a third-wave therapy. This is a gap, as mainstream mindfulness classes may inadvertently be inaccessible or challenging for some autistic people, and there are some simple ways in which a mindfulness teacher can better support autistic people who attend their classes. This chapter discusses what it means to be autistic, provides an overview of the research on mindfulness for autistic people, and describes ways of adapting mainstream mindfulness-based interventions to better support autistic participants. The chapter will be of interest to clinicians, supervisors, teacher trainers, researchers, mindfulness practitioners and teachers, all of whom may be autistic, or non-autistic.