English abbreviations from iww to iyr
- IWW (Industrial Workers of the World)
- IWWS (Inland Waterway System)
- IWWWC (International World Wide Web Conference)
- IX (Nine (in Roman numerals))
- I.X. (In Christo ("In Christ"))
- IXA (Agartala Airport (Singerbhil Airport))
- IXB (Bagdogra Airport)
- IXC (Chandigarh Airport)
- IXD (Allahabad Airport / Bamrauli Air Force Base)
- IXE (Mangalore International Airport)
- IXG (Belgaum Airport)
- IXH (Kailashahar Airport)
- IXI (Lilabari Airport (North Lakhimpur Airport))
- IXJ (Jammu Airport (Satwari Airport))
- IXK (Junagadh Airport (Keshod Airport))
- IXL (Leh Kushok Bakula Rimpochee Airport)
- IXM (Madurai Airport)
- IXMP (Information Standards Management Panel)
- IXN (Khowai Airport)
- IXP (Pathankot Airport)
- IXQ (Kamalpur Airport)
- IXR (Birsa Munda Airport (Ranchi Airport))
- IXS (Silchar Airport (Kumbhirgram Airport))
- IXT (IntraText digital library; IntraText lexical hypertext)
- IXU (Aurangabad Airport (Chikkalthana Airport))
- IXV (Along Airport)
- IXW (Sonari Airport)
- IXY (Kandla Airport (Gandhidham Airport))
- IXZ (Vir Savarkar Airport (Port Blair Airport))
- IY (Saudi–Iraqi neutral zone (FIPS 10-4 territory code; obsolete 1993))
- IYA (Indian Youth of America)
- IYAAYAS (If You Ain't Ammo, You Ain't Shit)
- IYB (International Youth Brigade)
- IYC (International Youth Camp)
- IYCB (Indian Institute of Chemical Biology)
- IYE (International Youth Exchange)
- IYERP (Idaho Youth Education Recycling Partnership)
- IYF (International Youth Foundation)
- IYHF (International Youth Hostel Federation)
- IYK (Inyokern Airport)
- IYO (Indian Youth Organisation)
- IYR (In Year Revenue)
