Aveṣṭi is a minor Vedic sacrifice belonging to the ‘iṣṭi’ group (sacrifices having four priests, and distinguished from the Somayāgas) performed as a minor rite in the much bigger Rājasūya sacrifice. It may also be performed as an independent rite.

In this sacrifice, puroḍāśas (rice-cakes) are offered to propitiate Agni and other deities who supervise over the quarters. The fee is of various kinds, gold being an important item.