The Katyn massacre, kent as the Katyn Forest massacre (Pols: zbrodnia katyńska, mord katyński, 'Katyń crime'; Roushie: Катынский расстрел Katynskij ra'sstrel 'Katyn shooting') forby, wis a mass execution o Pols ceetizens carried oot bi the Fowk's Commissariat for Internal Affairs (NKVD), the Soviet secret police, in Aprile an Mey 1940, durin the Seicont Warld War.

A Memorial consisting o three crosses staundin on a lairge brick pedestal. Each cross bears a name - Katyn, Kharkiv, or Mednoye.
Katyn-Kharkiv-Mednoye memorial
Cairt o the sites relatit tae the Katyn massacre
Cairt o the steids relatit tae the Katyn massacre

Coordinates: 54°46′N 31°47′E / 54.767°N 31.783°E / 54.767; 31.783