The Stockholm International Peace Research Institute (SIPRI) is a research organization based in Stockholm, Sweden. Founded in 1966, it focuses on global security issues, including arms control, disarmament, and conflict resolution. SIPRI conducts independent research and provides data and analysis on military expenditures, arms transfers, and peacekeeping efforts.
SIPRI is known for its annual reports and databases, which are widely used by policymakers, researchers, and the public. The institute collaborates with various international organizations and academic institutions to promote understanding of peace and security challenges worldwide.