| Description | Notes | |
|---|---|---|
| EN | Omskaya Administrative Region | — |
| FR | Oblast d’Omsk | — |
| ES | Región administrativa de Omskaya | — |
List 49 · Region – based on ISO 3166-2
RU-OMS — Omskaya Administrative Region
<!-- ONIX snippet not yet curated for codelist 49 (value: RU-OMS) -->- Introduced in Issue 22