.int is a generic top-level domain (gTLD) used on the Internet's Domain Name System.
According to current IANA policy, the .int gTLD is reserved for international treaty-based organizations, United Nations agency and organizations or entities having Observer status at the UN. This top-level domain was initially created for use by NATO, to replace the previous .nato TLD.
The .int domain is used only for registering organizations established by international treaties between governments. It is operated by the IANA .int Domain Registry.