Kamionna [kaˈmjɔnna] is a village in the administrative district of Gmina Łochów, within Węgrów County, Masovian Voivodeship, in east-central Poland.

In the 1480s, nobleman Mikołaj Targowski founded the local Catholic church and parish of the Immaculate Conception of Mary.

[2] A second church of the Ten Thousand Martyrs was founded in 1576 by Jan Łochowski, but it was destroyed by the invading Swedes in 1704.

During the January Uprising of 1863–1864, local parish priest Józef Wiktor gave shelter to Polish insurgents from the region in Kamionna.

[4] He is considered one of the 108 Blessed Polish Martyrs of World War II by the Catholic Church.