The Italian Society for International Organization (SIOI) is an international non-profit organization that has been operating since 1944 subject to the Ministry of Foreign Affairs’ supervision.

SIOI is the Italian Association for the United Nations (UNA Italy), a founding member of the World Federation of the United Nations Associations (WFUNA) and an active member of the International Forum on Diplomatic Training (IFDT) in Vienna.

SIOI has its main office in the center of Rome, in Palazzetto Venezia, and has spread over national territory through all of its branches, the Office to support the United Nations in Assisi and groups of the Students’ Movement for International Organization (MSOI).

SIOI’s institutional aims are diplomatic and international training, gathering research and information on topics related to international organization, international relations, international cooperation and international protection of human rights.

The Students’ Movement for International Organization (MSOI) is the youth branch of SIOI. MSOI is also the Italian United Nations Youth Association (UNYA Italy).