Kalkî is the last avatar of the god Vishnu, in Hinduism.

It is an "coming" avatar at the end of the time of Kali Yuga included in the general Mahayuga.

According to the religious texts preserved in the Puranas, Kalkî will be a man with the head of a horse or will ride a white horse and carry a flaming sword, to fight demons.

Sri Aurobindo sees in the avatar Kalkî a symbol of the spiritual development of the human being.

Etymologically, the name Kalkî is a metaphor for eternity or time.
The name of Kalkî translates as "destroyer of ugliness", "destroyer of darkness", or even "destroyer of ignorance"