SummaryThis article describes a special adaptation of group psychotherapy as a psychological treatment for people with a variety of gender identity disorders. It can be used as an alternative to or concurrently with hormonal and/or surgical interventions for transgender people. It is also suitable for individuals whose gender identity disorder remains after physical interventions. The article draws from a UK specialist pilot for such a treatment service and describes the explicit aims of the psychotherapy, the specialist adaptation of therapeutic technique required and observed thematic features relevant to working in this specific field.