Vardenik (; until 1945, Gezeldara, Nerkin Gezaldara, Gyuzeldara, and Nizhnyaya Gezaldara), is a major village in the Gegharkunik Province of Armenia that sits along the Vardenis River. It was founded in 1828-29 by emigrants from Mush. There are the cyclopean fort ruins of Kaftarli 3 km south, with petroglyphs downhill along the bank of the river. Some churches and shrines can be found in the vicinity.
The village is the largest rural community in Armenia by population.
Vardenik ( Serbian Cyrillic: Варденик) is a mountain in southern Serbia, near the town of Surdulica. Its highest peak Veliki Strešer has an elevation of 1,875 meters above sea level. Vardenik surrounds the Vlasina plateau and Vlasina Lake along with Čemernik and Gramada.