Look up inis in Wiktionary, the free dictionary.
INIS may refer to:
- International Nuclear Information System, a collection of nuclear science information
- Iraqi National Intelligence Service
- iNiS Corporation, a Japanese video game developer
- Institut national de l'image et du son, a training institute in Montreal, Canada
- Irish Naturalisation and Immigration Service, an agency of the Irish government
- INIS character set, a subset of ASCII