Nagai Sadashige

Nagai Sadashige (1272–1331) was a late Kamakura gokenin and head of the Nagai clan's Kyoto cadet line, the Rokuhara hyōjōshū house founded by his grandfather. The son of Nagai Yorishige, he took a character of his name from the ninth shikken, Hōjō Sadatoki, at his coming of age.

He served in Kyoto as a Rokuhara hyōjōshū and inherited the family post of shugo of Bingo. He died in 1331, said to be aged sixty.