Yajnavalkya (याज्ञवल्क्य) is a vedic sage of Hinduism
Yajnavalkya is credited to be the one who coined the word Advaita (non-dual) one of the important traditions within Hinduism. He is also mentioned in various Brahmanas, Aranyakas and Upanishads.
Yajnavalkya is also famed in the Indian tradition for being a Vedic scholar who welcomed participation of women in Vedic studies, and Hindu texts present some of his most significant philosophical ideas in the form of his dialogues with two women, Gargi and Maitreyi.
Yajnavalkya is associated with several other major ancient texts in Sanskrit, namely the Shukla Yajurveda, the Shatapatha Brahmana, the Brihadaranyaka Upanishad, the Dharmasastra named Yājñavalkya Smṛti, Vriddha Yajnavalkya, and Brihad Yajnavalkya. He is also mentioned in the Mahabharata and the Puranas.