This category includes organizations that are considered to be member bodies of the International Organization for Standardization, or ISO. Typically, there is one such body per country.
Note that all articles in this category should also be categorized under the relevant country, for example Category:Organizations based in Canada for the Standards Council of Canada. As ISO is itself a standards organization, applying that categorization to articles in this category would be redundant.
The member bodies are sorted alphabetically by country.