Ganden Monastery or Ganden Namgyeling or Monastery of Gahlden is one of the "great three" Gelug university monasteries of Tibet. It is in Dagzê County, Lhasa. The other two are Sera Monastery and Drepung Monastery. Ganden Monastery was founded in 1409 by Je Tsongkhapa Lozang-dragpa, founder of the Gelug order.