Osečná (Czech pronunciation: [ˈosɛtʃnaː]; German: Oschitz) is a town in Liberec District in the Liberec Region of the Czech Republic. It has about 1,200 inhabitants. The town is located in the Ralsko Uplands on the upper course of the Ploučnice River. Lázně Kundratice, a part of Osečná, is known as a spa village.