Daini no Sanmi

was a Japanese waka poet of the mid-Heian period. although the kanji can also be read as Kenshi.

In 1017, she joined to the court and served as a lady-in-waiting for Grand Empress Dowager Shoshi, the mother of Emperor Go-Ichijo. She was married to and produced a son in 1038, and she had a daughter with in 1026. translation = At the foot of Mt. Arima the wind rustles through bamboo grasses wavering yet constant—there will never be a moment that I forget about you. — Goshūi Wakashū 12:709

She also produced a private collection called the .

Possible partial authorship of The Tale of Genji Some scholars have attributed the final ten chapters of her mother's magnum opus, The Tale of Genji, to her.