Dagpo Kagyu Tibetan: དྭགས་པོ་བཀའ་བརྒྱུད, Wylie: dwags po bka' brgyud encompasses the branches of the Kagyu school of Tibetan Buddhism that trace their lineage back through Gampopa (1079-1153), who was also known as Dagpo Lhaje (Tibetan: དྭགས་པོ་ལྷ་རྗེ, Wylie: dwags po lha rje) "the Physician from Dagpo" and Nyamed Dakpo Rinpoche "Incomparable Precious One from Dagpo". All the institutional branches of the Kagyu tradition of Tibetan Buddhism surviving today, including the Drikung Kagyu, the Drukpa Lineage and the Karma Kagyu, are branches of the Dagpo Kagyu.
Narrowly, the term Dagpo Kagyu is sometimes used to refer specifically to the lineage of Gampopa's own monastery of Dagla Gampo. This lineage passed from Gampopa to his own nephew Dagpo Gomtsul. Dagpo Tashi Namgyal (1511-1587) was an important lama in this lineage.
Following Gampopa's teachings, there evolved the so-called "Four Primary and Eight Secondary" lineages of the Dagpo Kagyu School.
The eight secondary lineages (zung bzhi ya brgyad or chung brgyad) of the Dagpo Kagyu all branched from the Phagdru Kagyu tradition and were founded by senior disciples of Phagmo Drupa Dorje Gyalpo or their immediate successors.