Entitled This Word, the Polish Radio drama depicts the plight of Polish children deported from the southeastern Zamość region by the Nazi German occupation authorities between 1942 and 1943.
The play focuses on the extraordinary role of Róża and Jan Zamoyski, a Polish aristocratic couple who saved 470 children from a German transit camp in Zwierzyniec.
Written by Marta Rebzda and directed by Waldemar Modestowicz, with music by Piotr Moss, This Word premiered on Polish Radio in November 2022.
Rebzda said the accolade "is a great joy and honour for the entire production team."
The award winners were announced at a ceremony at BBC Broadcasting House in London on Sunday.
The BBC Audio Drama Awards celebrate the creativity of actors, writers, directors, producers, musicians and sound designers.
Last year, This Word won first prize in the full-length drama category at the UK International Audio Drama Festival in Canterbury.
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Click on the audio player above for a report by Radio Poland's Marcin Matuszewski.