Anuttarayoga, Highest Yoga Tantra; 無上瑜伽部; Tibetan: རྣལ་འབྱོར་བླ་ན་མེད་པའི་རྒྱུད (nal jor la na me pay jue); Wylie: rnal ‘byor bla na med pa’i rgyud;
Anuttarayoga (highest yoga tantra) is the highest of the four classes of Vajrayana containing Guhyasamaja, Chakrasamvara, Yamantaka, Hevajra, and Kalachakra tantras.
無上瑜伽部是金剛乘四部密續中最上部,包含了密集金剛、勝樂金剛、大威德金剛、喜金剛和時輪金剛等。