Abe no Sadatō (安倍 貞任, 1019 – October 22, 1062) was a samurai during the Heian period of Japan.

Minamoto no Yoriyoshi and his son Yoshiie came to the Abes' northern province of Mutsu to restore power over the province to the Governor; Abe no Yoritoki, Sadatō's father, had been acting beyond his station.

He fought them in the battle of Kawasaki, in a snowstorm, defeated them and pursued them through the blizzard for a short time.

[1] Other battles followed, during which Sadatō's attacks, along with the harsh weather and terrain, weakened his enemies.

"[3] Famed director Akira Kurosawa claimed in his autobiography to be a descendant of Abe no Sadatō.