ISO 3166-2:AG is the entry for Antigua and Barbuda in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.

Currently for Antigua and Barbuda, ISO 3166-2 codes are defined for 6 parishes and 2 dependencies.

Each code consists of two parts, separated by a hyphen. The first part is , the ISO 3166-1 alpha-2 code of Antigua and Barbuda. The second part is two digits:
 03–08: parishes (all on the island of Antigua)
 10–11: dependencies (Barbuda and Redonda)

Current codes
Subdivision names are listed as in the ISO 3166-2 standard published by the ISO 3166 Maintenance Agency (ISO 3166/MA).

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Changes
The following changes to the entry have been announced by the ISO 3166/MA since the first publication of ISO 3166-2 in 1998.  ISO stopped issuing newsletters in 2013.

See also
 Subdivisions of Antigua and Barbuda
 FIPS region codes of Antigua and Barbuda

External links
 ISO Online Browsing Platform: AG
 Parishes of Antigua and Barbuda, Statoids.com

2:AG
ISO 3166-2
Antigua and Barbuda geography-related lists