Atri (Sanskrit: अत्रि) or Attri is a Vedic sage, who is credited with composing numerous hymns to Agni, Indra and other Vedic deities of Hinduism. Atri is one of the Saptarishi (seven great Vedic sages) in the Hindu tradition, and the one most mentioned in its scripture Rigveda.The fifth Mandala (Book 5) of Rigveda is called the Atri Mandala in his honour, and the eighty seven hymns in it are attributed to him and his descendants.Atri is also mentioned in the Puranas and the Hindu Epics such as the Ramayana and the Mahabharata.