The Dashavatara (Sanskrit: दशावतार, daśāvatāra) are the ten primary avatars of Vishnu, a principal Hindu god. Vishnu is said to descend in the form of an avatar to restore cosmic order.^[1] The word Dashavatara derives from daśa, meaning "ten", and avatāra, roughly equivalent to "incarnation".

The list of included avatars varies across sects and regions, particularly in respect to the inclusion of Balarama (brother of Krishna) or Gautama Buddha. Though no list can be uncontroversially presented as standard, the "most accepted list found in Puranas and other texts is [...] Krishna, Buddha."^{[2][3][4][5][6][note 1]} Most draw from the following set of figures, in this order:^[7][8][9] Matsya; Kurma; Varaha; Narasimha; Vamana; Parashurama; Rama; Krishna or Balarama; Buddha^{[note 1]} or Krishna; and Kalki. In traditions that omit Krishna, he often replaces Vishnu as the source of all avatars. Some traditions include a regional deity such as Vithoba^[10] or Jagannath^[7] in penultimate position, replacing Krishna or Buddha. All avatars have appeared except one; Kalki, who will appear at the end of the Kali Yuga.

The order of the ancient concept of Dashavataras has also been interpreted to be reflective of modern Darwinian evolution, as a description of the evolution of consciousness. Some Hindu texts say there are 24 Avatars of Vishnu.