Kamo no Yasunori (賀茂 保憲) was an onmyōji, a practitioner of onmyōdō, during the Heian period in Japan. He was considered the premier onmyōji of his time. Yasunori was the son of the onmyōji (賀茂 忠行). According to a tale in the Konjaku Monogatarishu, at the age of ten, Yasunori accompanied his father to an exorcism, where he was able to perceive the demons — a sign of talent, for, unlike Tadayuki, Yasunori was capable of doing so without formal training. Yasunori's second daughter became an acclaimed poet.