The International Union of Immunological Societies (IUIS) is an umbrella organization for many of the regional and national societies of immunology throughout the world. As articulated in its Constitution, the objectives of IUIS are:
- to organize international co-operation in immunology and to promote communication between the various branches of immunology and allied subjects
- to encourage within each scientifically independent territory co-operation between the Societies that represent the interests of immunology
- to contribute to the advancement of immunology in all its aspects.