Harrachov (ˈɦaraxof; Harrachsdorf) is a town in Jablonec nad Nisou District in the Liberec Region of the Czech Republic, close to the border with Poland. It has about 1,400 inhabitants. It is known for its ski resort.
The town is made up of four town parts and villages: Harrachov, Mýtiny, Nový Svět and Ryžoviště.
Harrachov is located about east of Jablonec nad Nisou, on the border with Poland. It lies in the Giant Mountains. The highest point is the mountain Luboch at above sea level. Part of the municipal territory belongs to Krkonoše National Park.
The Mumlava River flows through the town. Its confluence with the Jizera is situated on the municipal border. On the Mumlava there is the Mumlava Waterfall, the biggest and one of the most famous waterfalls in the Czech Republic. It has a flow rate of 800 L/s and a height of .
Harrachov was established in the 17th century, after a glassworks was founded in the area o