Triyuginarayan Temple () is a Hindu temple located in the Triyuginarayan village in Rudraprayag district, Uttarakhand,India. The ancient temple is dedicated to god Vishnu. Its fame is credited to the legend of god Shiva's marriage to goddess Parvati witnessed by Vishnu at this venue and is thus a popular Hindu pilgrimage sites. A special feature of this temple is a perpetual fire, that burns in front of the temple. The flame is believed to burn from the times of the divine marriage. Thus, the temple is also known as Akhand Dhuni temple.