The Vlára is a river in the Czech Republic and Slovakia, a right tributary of the Váh.

It is the only significant watercourse in the Czech Republic that does not belong to the Elbe, Morava and Oder river basins.

[4] The longest tributaries of the Vlára are:[2] The river flows through the territories of Drnovice, Tichov, Vysoké Pole, Vlachova Lhota, Vlachovice, Bohuslavice nad Vláří, Jestřabí, Štítná nad Vláří-Popov and Brumov-Bylnice in the Czech Republic, and continues through the territories of Horné Srnie and Nemšová in Slovakia.

Originally a tributary of the Morava, the Vlára cut through the ridge of the White Carpathians mountains due to erosion, creating the Vlára Pass and making the river a tributary of the Váh.

The Vlára is the only significant stream in the Czech Republic that does not fall within the Elbe, Morava and Oder river basins.