Battle of Round Mountain

ISO is the abbreviation for the International Organization for Standardization.

ISO or Iso may also refer to:

Business and finance

Iso (supermarket), a chain of Danish supermarkets incorporated into the SuperBest chain in 2007.
Iso Omena ("Big Apple"), a shopping center in Finland.
Incentive stock option, a type of employee stock option.
Independent Sales Organization, a company that partners with an acquiring bank to provide merchant services.
Insurance Services Office, an American insurance underwriter.
Intermarket sweep order, a type of limit order on financial markets.
Iso (automobile), an Italian car manufacturer.

Isomorphic Algorithms (ISO's), a fictional race in the digital world of Tron: Legacy.
Iso (comics), a Marvel comics character.

Imamia Students Organisation, an Islamic organization in Pakistan.
Independent system operator, a North American organization that coordinates, controls and monitors the operation of the electrical power system.
Internal Security Organisation, a government security agency in Uganda.
International Organization for Standardization.
- List of International Organization for Standardization standards, a list of ISO standards.
International Socialist Organization, United States Trotskyist organization, active from 1976 to 2019.
International Socialist Organisation (Australia), Australian Trotskyist organization, active from 1971 to 2008.
International Socialist Organisation (Germany), German Trotskyist organisation, established in 2016.
International Socialist Organisation (New Zealand), New Zealand Trotskyist organization, founded in the early 1990s.

«»* Interstedelijk Studenten Overleg (Dutch National Students Association), the Netherlands.

ISO character set (disambiguation)
ISO image, a file containing the whole contents of an optical disc
ISO base media file format, a container format for time-based multimedia files
ISO 5800, a film speed system
- Digital camera ISO, light sensitivity of a digital image sensor
ISO 8601, a date format
ISO(n), the Euclidean group
Isopropyl alcohol, the simplest secondary alcohol
Infrared Space Observatory, a space telescope active from 1995 to 1998
International Science Olympiad, a series of science competitions for students
Iso (fish), a genus of surf sardines in the family Notocheiridae
Isomer, chemicals with the same chemical formula but different structures
Isorhapontigenin, a stilbenoid (chemical)
Isotonitazene, a benzimidazole-derived opioid analgesic drug, colloquially referred to as "iso"
ISO: integumentary sensory organ