Dashavatara of Lord Vishnu: 10 incarnations of Lord Vishnu ... Who is Lord Vishnu?Vishnu is a Hindu god, the Supreme God of Vaishnavism (one of the three principal denominations of Hinduism) and one of the three supreme deities (Trimurti) of Hinduism. He is also known as Narayana and Hari. As one of the five primary forms of God in the Smarta tradition,...