Paulinów is a village in the administrative district of Gmina Sterdyń, within Sokołów County, Masovian Voivodeship, in east-central Poland. During World War II, the village was occupied by Germany. Several people in the village helped to hide Jews. The Germans used a Jewish agent to pose as an escapee looking for a hiding place with a Polish family, after receiving help the agent denounced the Polish family to the Germans, resulting in a German-perpetrated massacre of 12 Poles and several Jews who were hiding with the family, committed on 24 February 1943.