The Polish Volunteer Corps (PDK; Polish: Polski Korpus Ochotniczy; Ukrainian: Польський добровольчий корпус, romanized: Polskyi dobrovolchyi korpus, ПДК) is a group consisting of mercenaries from Poland fighting on the side of Ukraine during the Russian invasion of the country.^[4][3][5]

The PDK fought in the Russian invasion of Ukraine against Russia.^[4][6] The PDK also fought in the Belgorod incursions with the Russian Volunteer Corps and Freedom of Russia Legion.^[2][3]

The PDK was founded in February 2023.^[4] The PDK fought against Russia during the Belgorod incursions.^[2] The PDK posted images on Twitter that showed them fighting with the Russian Volunteer Corps and the Freedom of Russia Legion in Belgorod.^[7][2] The PDK stated that no one had been killed during the fighting in Belgorod.^[3] The Polish government has denied any ties with the group, and insists that any action by the volunteers is not representative of the Polish government or the Polish armed forces.^[8]

The PDK is a special unit for reconnaissance and sabotage, which does not belong to the Ukrainian Foreign Legions, but is likely part of the Ministry of Foreign Affairs of Ukraine.^[9]

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