The Irish Group Analytic Society (IGAS) is the professional body for Group Analysis in Ireland. The society seeks to promote the practice and development of Group Analysis, also known as Group Analytic Psychotherapy.

The membership consists of qualified and training group analysts, and other professionals interested in the practice and application of group dynamics.

IGAS is a member of the Irish Council for Psychotherapy (ICP) and has a close relationship with the Irish Institute of Group Analysis (IIGA), the
training body for group analysis in Ireland.