ISO 3166-2:FI is the entry for Finland 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 Finland, ISO 3166-2 codes are defined for 19 regions (under six Regional State Administrative Agencies plus Åland).
Each code consists of two parts, separated by a hyphen. The first part is FI, the ISO 3166-1 alpha-2 code of Finland. The second part is two digits.
Åland (Finnish: Ahvenanmaan maakunta; Swedish: Landskapet Åland), an autonomous region of Finland (also a former province), is also officially assigned its own country code in ISO 3166-1, with alpha-2 code AX.