The associations to which UKSW belongs include:
- FUCE – Fédération des Universités Catholiques Européennes – a network of Catholic European universities created under the Fédération Internationale des Universités Catholiques.
- FIUC – Fédération Internationale des Universités Catholiques – an international association of Catholic universities and institutions of higher education, approved by the Holy See in 1949 and recognized as an International Non-Governmental Organization by the United Nations System.