Hōjō Sadayuki (北条 貞将, 1302 – July 4, 1333) was a Japanese samurai lord of the late Heian period.

[5] The same year, his father Sadaaki began making arrangements for his son, and Sadayuki resigned from the post of tandai and left Kyoto in 1330.

On July 4, 1333, he attacked Yoshisada's forces and was killed along with his son Tadatoki and many members of the Kanazawa Hōjō family.

[10] According to Taiheiki, Hōjō Takatoki rewarded Sadayuki by appointing him to the posts of "both tandai" and Governor of Sagami Province.

[9][10] However, Sadayuki was hikitsuke ichiban tōnin at the time, and he had previously served as Rokuhara Tandai; this "reward" was equivalent to a demotion, and the only possible promotion could have been to the post of Shikken.