ICO or Ico may refer to:

Science and technology

• ICO (file format), a file format used for icon images in Microsoft Windows

• Index of Central Obesity, a measurement of abdominal obesity

• Indian Computing Olympiad, an annual computer programming competition

• Initial coin offering, a funding process involving a new cryptocurrency

• Intermediate circular orbit, a type of satellite orbit

Organizations

• ICO Global Communications, a mobile satellite services company based in Reston, Virginia, US

• Catalan Ornithological Institute (), a non-profit for the study of birds in Catalonia

• Illinois College of Optometry, a private college in Chicago, Illinois, US

• Information Commissioner's Office, a UK regulator

• Institute of Contemporary Observation, a Chinese non-governmental organization

• International Coffee Organization, a group for enhancing cooperation between nations dealing in coffee

• International Commission for Optics, a commission for knowledge in optics

• International Communist Opposition, a group of critics of the Communist movement

• International Council of Ophthalmology, a body serving associations of ophthalmologists

• Instituto de Crédito Oficial, a Spanish state-owned development bank

• Irish Chamber Orchestra, a chamber orchestra in Ireland

• Irish College of Ophthalmologists, the national body for ophthalmology training in Ireland

• Israel Chamber Orchestra, a chamber orchestra in Israel

Places

• Cocos (Keeling) Islands (ITU code: ICO), an Australian territory in the Indian Ocean

• Icó, a town in Ceará, Brazil

Other uses

• Ico, a 2001 PS2 action-adventure video game

• Ico, the Brave Horse, a 1983 Argentine animated film

• Ico Hitrec (1911–1946), Croatian football player

See also

• IKO (disambiguation)

  LCO (disambiguation)

• LC0 (disambiguation)

• ICOS (disambiguation)