Multi-ethnic therapeutic groups are an increasingly common form of intervention in human service settings. Cultural diversity affects the group dynamics in predictable ways. Three dynamics are discussed in the paper: recapitulation of the family of origin, group culture and group as a microcosm of society. Transcultural group intervention enables members to discuss culturally influenced behavior patterns, value systems and communication styles. Leaders facilitate the acquisition of improved multi-cultural relationship skills and an enriched ethnic consciousness. Members are encouraged to teach each other about their cultural heritage and in so doing improve their bicultural adaptation skills. Multi-ethnic groups become a laboratory for learning about cultural differences and human similarities, as well as a forum to address personal life issues.