Lkáň ( German Welkan ) is a municipality in the Czech Republic. It belongs to Okres Litoměřice.
The city is located 5 km south west of Trebenice in 209 m asl on both sides of the river Rosovka on the Hasenburger plate in the southwest of the Bohemian Uplands. Neighboring towns are in the north Dlažkovice, northeast Chodovlice, in the southeast and southwest Klapý Lukohořany.
Lkáň was first mentioned in 1237, as the place Wenceslas I left the pen Tepl. Later, the owners changed frequently. These included until 1558 Zajíc Hasenburg, then to 1593 the Lobkowicz, the eingliederten it in their rule Libochovice. Between 1594 and 1604 Welkan and belonged to Emperor Rudolph II. Nearest owner was Sigismund Báthory, after whose death the place in 1613 came to the Sternberger.
During the Thirty Years' War Saxon troops destroyed the village, which was not settled immediately and at least to 1676 lay desolate. The Dietrichsteiner as the owner left the desert place from 1690 through German from their dominions resettle. Next owners were Herber Steiner. After detachment of the patrimonial Welkan was a separate municipality. From 1869 to 1910, she was part of the district Roudnice. In the years 1921-1930 Lkáň belonged to 22 km southeast town Roudnice. Between 1928 and 1929 the school house was built. 1930, the place had 366 inhabitants.
1985 Lkáň was incorporated into Klapý and again since 1992 independently.
At the Podhrázký - mill west of the town is jammed in the Rosovka Podhrázkýteich. The pond is characterized by its variety of water birds and nightingales colony. In the village there is a small alcove chapel built in 1830.