Koszęcin [kɔˈʂɛnt͡ɕin] is a village in Lubliniec County, Silesian Voivodeship, in southern Poland.

It was the site of fights during the Polish Third Silesian Uprising against Germany in 1921, and afterwards it was reintegrated with Poland, which just regained independence following World War I.

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

The occupiers operated the E416 forced labour subcamp of the Stalag VIII-B/344 prisoner-of-war camp in the village.

Koszęcin is located at the intersection of the Voivodeship roads 906 and 907, and there is also a train station.