ISO 3166-2:OM is the entry for Oman 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 Oman, ISO 3166-2 codes are defined for 11 governorates. In 2011, the following subdivision changes took place:
Each code consists of two parts, separated by a hyphen. The first part is OM, the ISO 3166-1 alpha-2 code of Oman. The second part is two letters.