Kietlin [ˈkʲɛtlin] is a village in the administrative district of Gmina Radomsko, within Radomsko County, Łódź Voivodeship, in south-central Poland.

Following the joint German-Soviet invasion of Poland, which started World War II in September 1939, the village was occupied by Germany.

In October 1943, the German gendarmerie committed a massacre of 11 people in Kietlin.

The victims were three Poles (two men and one woman) and eight Jews (including children), whom they sheltered from the Holocaust.

This Radomsko County location article is a stub.