Kossów [ˈkɔssuf] is a village in the administrative district of Gmina Radków, within Włoszczowa County, Świętokrzyskie Voivodeship, in south-central Poland.

[1] For centuries Kossow belonged to Lelów County, Kraków Voivodeship, historic province of Lesser Poland.

It is not known when it received Magdeburg rights: probably this happened some time in the 14th century.

Jan Długosz wrote that in the 15th century it already was a private town.

Kossow remained a small town, losing its charter in 1869, as a punishment for January Uprising.