ISO 3166-2:BY is the entry for Belarus 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 Belarus, ISO 3166-2 codes are defined for 6 oblasts and 1 city. The city Minsk is the capital of the country and has special status equal to the oblasts.
Each code consists of two parts, separated by a hyphen. The first part is BY, the ISO 3166-1 alpha-2 code of Belarus. The second part is two letters.