Uchchhishta Ganapati (Sanskrit: उच्छिष्ट-गणपति, Ucchiṣṭa Gaṇapati) is an Tantric aspect of the Hindu god Ganesha (Ganapati). He is the primary deity of the Uchchhishta Ganapatya sect, one of six major schools of the Ganapatyas. He is worshipped primarily by heterodox vamachara rituals. He is depicted with a nude goddess, in an erotic iconography. He is one of the thirty-two forms of Ganesha, frequently mentioned in devotional literature. Herambasuta was one of the exponents of the Uchichhishta Ganapatya sect.
The god derives his name from Uchchhishta ("leftovers"). The word refers to the food left over at the end of a ritual, but in this context refers to its Tantric connotation. Uchchhishta is the food kept in the mouth, which is contaminated with saliva, thus ritually impure and a taboo in Hinduism.
The elephant-headed god is described to be reddish in colour in the Mantra-maharnava, while mentioned as dark in the Uttara-kamikagama. Another description describes him to be blue in complexion. The deity is described to have four or six arms. He is described to be seated, sometimes specifically noted in on padmasana (a lotus pedestal). The Uttara-kamikagama elaborates that he wears a ratna mukuta (jewelled crown) and has a third eye on his forehead.
The Kriyakramadyoti mentions that the god carries in his six hands: a lotus (in some descriptions, a blue lotus), a pomegranate, the veena, an akshamala (rosary) and a rice sprig. As per the Mantra-maharnava, he carries a bana (arrow), a dhanus (bow), a pasha (noose) and an ankusha (elephant goad). The Uttara-kamikagama says that the god has four arms and holds a pasha, an ankusha and a sugarcane in three hands.