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Second-order administrative division in Russia

List of second-order administrative division in Russia (found 46 locations). Category description: A subdivision of a first-order administrative division

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Obluchenskiy Rayon (Jewish Autonomous Oblast)
Oboyanskiy Rayon (Kursk)
Odintsovskiy Rayon (MO)
Okhinskiy Rayon (Sakhalin)
Okinskiy Rayon (Respublika Buryatiya)
Oktyabr’skiy Rayon (Amur)
Oktyabr’skiy Rayon (Kursk)
Oktyabr’skiy Rayon (Volgograd)
Oktyabr’skiy Rayon (Kostroma)
Oktyabr’skiy Rayon (Jewish Autonomous Oblast)
Oktyabr’skiy Rayon (Chelyabinsk)
Oktyabr’skiy Rayon (Kalmykiya)
Okulovskiy Rayon (Novgorod)
Olenyoksky District (Sakha)
Olonetskiy Rayon (Republic of Karelia)
Olovyanninskiy Rayon (Transbaikal Territory)
Olyokminsky District (Sakha)
Olyutorskiy Rayon (Kamtsjatka)
Ol’khonskiy Rayon (Irkutsk)
Ol’khovatskiy Rayon (Voronezj)
Ol’khovskiy Rayon (Volgograd)
Ol’skiy Rayon (Magadan)
Omsukchanskiy Rayon (Magadan)
Omutinskiy Rayon (Tjumen)
Omutninskiy Rayon (Kirov)
Onezhskiy Rayon (Arkhangelskaya)
Ongudayskiy Rayon (Altai Republic)
Ononskiy Rayon (Transbaikal Territory)
Oparinskiy Rayon (Kirov)
Opochetskiy Rayon (Pskov)
Ordynskiy Rayon (Novosibirsk)
Ordzhonikidzevskiy Rayon (Khakasiya)
Orekhovo-Zuyevskiy Rayon (MO)
Orichevskiy Rayon (Kirov)
Orlovskiy Rayon (Kirov)
Orshanskiy Rayon (Mariy-El)
Osinskiy Rayon (Irkutsk)
Ostashkovskiy Rayon (Tverskaya)
Ostrogozhskiy Rayon (Voronezj)
Ostrovskiy Rayon (Kostroma)
Ostrovskiy Rayon (Pskov)
Otradnenskiy Rayon (Krasnodarskiy)
Ovyurskiy Rayon (Tyva)
Oymyakonskiy District (Sakha)
Ozerskiy Rayon (Kaliningrad)
Ozyory Urban Okrug (MO)