Ekapada refers to a one-footed aspect of the Hindu god Shiva. This aspect is primarily found in South India and Orissa, but also occasionally in Rajasthan and Nepal. The Ekapada is primarily represented in three iconographical forms. In the Ekapada-murti (one-footed icon) form, he is depicted as one-legged and four-armed. In the Ekapada-Trimurti (one-footed Trinity) form, he is depicted with the torsos of the deities Vishnu and Brahma, which together with Shiva form the Hindu Trinity (Trimurti) emanating from his sides, waist upwards and with one leg; however, sometimes, besides the central one leg of Shiva, two smaller legs of Vishnu and Brahma emerge from the sides. While some scriptures also call the latter configuration Ekapada-Trimurti, some refer it to as Tripada-Trimurti (three-footed Trinity). In Orissa, where Ekapada is considered an aspect of Bhairava, the fearsome aspect of Shiva, the iconography of Ekapada-murti becomes more fierce, with motifs of blood sacrifice. This aspect is called Ekapada Bhairava (one-footed Bhairava or the one-footed fierce one).

The Ekapada form of Shiva originated from the Vedic deity Aja Ekapada or Ajaikapada, a name that Ekapada Bhairava still inherits. Ekapada represents the Axis Mundi (cosmic pillar of the universe) and portrays Shiva as the Supreme Lord, from whom Vishnu and Brahma originate. Ekapada is often accompanied by ascetic attendants, whose presence emphasizes his connection to severe penance.