Łączka [ˈwɔnt͡ʂka] is a village in Gmina Dębowiec, Cieszyn County, Silesian Voivodeship, southern Poland.

It could have been first mentioned in the letter issued by Wenceslaus I, Duke of Cieszyn on 12 March 1434 in which he bestowed a place called Lochni/Locheny (Łączka?)

[2] Politically it belonged then to the Duchy of Teschen, a fee of the Kingdom of Bohemia, which after 1526 became a part of the Habsburg monarchy.

According to the censuses conducted in 1880, 1890, 1900 and 1910 the population of the municipality grew from 135 in 1880 to 143 in 1910, all of them were native Polish-speakers mostly Roman Catholics (56% in 1910), followed by Protestants (44% in 1910).

The village is situated in the Silesian Foothills,[5] up to approximately 340 m (1,120 ft) above sea level, 10 km (6.2 mi) north of the Silesian Beskids, in area drained by several streams, right tributaries of the Knajka stream, in the watershed of the Vistula.