IRO, Iro, or iro may refer to:
Organizations Institution of Railway Operators (Chartered Institution of Railway Operators since October 2021) Internal Revolutionary Organization, Bulgaria International Refugee Organization, a United Nations agency 1946–1952 International Search and Rescue Dog Organisation Jewish Industrial Removal Office, an agency assisting European Jewish immigrants to the U.S. in the early 20th century
People Given name Iro Haarla (born 1956), Finnish jazz musician Iro Ilk, German Luftwaffe pilot; recipient of the Knight's Cross of the Iron Cross Iro Konstantopoulou (1927–1944), Greek resistance member during World War II Iro Tembeck (1946–2004), Canadian dancer, choreographer, and dance historian
Surname Andy Iro (born 1984), English footballer Edgar Iro (born 2000), Solomon Islands swimmer Hapilyn Iro (born 1992), Solomon Islands weightlifter Kayal Iro (born 2000), Cook Islands rugby league footballer Kevin Iro (born 1968), New Zealand rugby league footballer Tony Iro (born 1967), New Zealand rugby league footballer and coach
Places Iro (South Sudan), a mountain Iro Lake, Chad Iro town in Obafemi Owode, Nigeria
Other uses Birao Airport (IATA code) Inland Revenue Ordinance, a tax law in Hong Kong Japanese oiler Irō, an Imperial Japanese Navy fleet oiler 1922–1944 Mohawk hairstyle or iro
See also Iroh, a fictional character in Avatar: The Last Airbender Lac Iro (disambiguation)