Sagara Taketo(相良武任; 1498-1551) is a samurai and retainer under Ouchi clan and a son of Sagara Masato .

Originally of Higo province, he served the Ouchi clan as his father had became a retainer of the clan. From around 1543 with the support of Ouchi Yoshitaka, he led a faction of retainers who preached a softer approach against the faction led by Sue Harukata that preached a hard line stance. On 1550, facing an impeding clash with Harukata, he tried to flee to Chikuzen province, but was captured and placed under a house arrest. Taketo tried to appease Harukata by having his daughter marry Harukata's son, but the relationship remained frozen.

On 1551, Harukata revolted and Taketo was killed in Hanao Castle . One of the reason for the internal feud of the Ouchi clan was a result of Taketo and Harukata arging over the future course of the clan.