Sasaki Takauji (佐々木 高氏?, 1306 – September 12, 1373), also known by his religious name Sasaki Dōyō, was a Japanese poet, warrior, and bureaucrat of the Muromachi period.
Born in Ōmi province, Sasaki Takauji served the regent Hōjō Takatoki briefly, before aiding the Shogun Ashikaga Takauji in overthrowing the Kemmu Restoration (in which the Emperor Go-Daigo sought to regain real power) and establishing the Ashikaga shogunate. During his period of service to the shogunate, Sasaki Takauji served as shugo (military governor) of six provinces, and held a number of other important positions. He was also known for his waka and renga poetry, and contributed 81 of his poems to the first imperial anthology of renga, the Tsukubashū. He is portrayed in the epic Taiheiki as a paragon of elegance and luxury, and as the quintessential military aristocrat.