Jedlina-Zdrój [jɛdˈlʲina ˈzdrui̯] (German: Bad Charlottenbrunn) is a spa town in Wałbrzych County, Lower Silesian Voivodeship, in south-western Poland, in the historic region of Lower Silesia.

The oldest mention of Jedlinka dates back to the 13th century, to the reign of Duke Bolko I the Strict of the Polish Piast dynasty.

[4] It was named Charlottenbrunn by its founder in honour of his wife Charlotte von Seherr-Thossa.

In the 19th century the spa town often changed its owners, which slowed its development.

[4] After Nazi Germany's defeat in World War II the region became once again part of Poland and the town was renamed Jedlina-Zdrój.