Laski Szlacheckie is a village in the administrative district of Gmina Czerwin, within Ostrołęka County, Masovian Voivodeship, in east-central Poland. It lies approximately 3 km south-east of Czerwin, 22 km south-east of Ostrołęka, and 97 km north-east of Warsaw. During the German invasion of Poland, which started World War II, on September 10, 1939, Wehrmacht troops murdered 20 Polish inhabitants in the village (see also Nazi crimes against the Polish nation).