Ushasta (Sanskrit: उषस्त) was a Vedic sage at the court of King Janaka in Mithila.
He was the fourth Brahmin scholar at the court of King Janaka, who debated with the sage Yajnavalkya during the occasion of the Bahudakshina Yajna.
[2] Ushasta is mentioned in the third chapter of the Indian philosophical text Brihadaranyaka Upanishad.
In the text Brihadaranyaka Upanishad, when the Brahmin scholar Bhujyu was not able to defeat the sage Yajnavalkya in the scholarly contest during the occasion of the Bahudakshina Yajna at the court of the King Janaka, then he kept silent.
After that the Brahmin scholar Ushasta stood up in the assembly and started Shastrartha with the sage Yajnavalkya.