Mogielnica [mɔɡʲɛlˈɲit͡sa] is a town in Grójec County in Masovian Voivodeship, Poland, with 2,475 inhabitants (2004) and an area of 141.56 square kilometres (54.7 sq mi).

Mogielnica was granted town rights modelled after Środa Śląska in 1317 by Duke Siemowit II of Masovia.

[2] In World War I, the Tsarist regime, in reprisal for its own catastrophic failures in battle with Germany, expelled the Jews of Mogielnica.

In 1940, during the Nazi Occupation of Poland, German authorities established a ghetto in Mogielnica to confine, persecute and exploit its Jewish population.

[7][8][9][10] The Nazis demolished the 18th-century Jewish cemetery located on the left side of the road to Grójec, near Przylesie Street, and used its headstones for pavement.