Karolinka (until 1951 Karolinina Huť; German: Charlottenhütte) is a town in Vsetín District in the Zlín Region of the Czech Republic.

The highest point is the Malý Javorník mountain at 1,019 m (3,343 ft) above sea level, which top is on the Czech-Slovak border.

The town proper is situated in the valley of the Vsetínská Bečva river.

The whole territory of Karolinka lies in the Beskydy Protected Landscape Area.

The settlement grew up around a glass factory established on the territory of Nový Hrozenkov municipality in 1861.