IRN
IRN may refer to:
- Input-referred noise
- Independent Radio News, a news service to commercial radio stations in the United Kingdom
- Independent Radio News (New Zealand), not affiliated with the United Kingdom company above
- International Rivers Network, a non-profit environmental organization based in California, United States
- Imperial Russian Navy, the navy of the Russian Empire
- Iran (ISO 3166-1 alpha-3 country code)
- Indian-ringnecked parakeet (abbreviated IRN), the subspecies Psittacula krameri manillensis of the rose-ringed parakeet
- Islamic Council Norway, Islamsk Råd Norge
- Italian Royal Navy, the navy of the Kingdom of Italy
This disambiguation page lists articles associated with the title IRN.
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