Maitreya (Sanskrit) or Metteyya (Pāli) is a future Buddha of this world in Buddhist eschatology. In some Buddhist literature, such as the Amitabha Sutra and the Lotus Sutra, he is referred to as Ajita Bodhisattva.

In Hinduism, Kalki (Devanagari: कल्कि; also rendered by some as Kalkin and Kalaki) is the tenth and final Maha Avatara (great incarnation) of Vishnu who will come to end the present age of darkness and destruction known as Kali Yuga. The name Kalki is often a metaphor for eternity or time.

The Book of Malachi, Elijah's return is prophesied "before the coming of the great and terrible day of the Lord," making him a harbinger of the Messiah and the eschaton in various faiths that revere the Hebrew Bible. Many Christian denominations include the prophet Elijah in their Old Testament account including the Church of Latter-Day Saints. The Qu'ran sites the accounts of Elijah as a major prophetic step for Gods children.