Ashina Moriuji (芦名 盛氏?, 1521 – July 28, 1580) was a Japanese daimyo of the Azuchi-Momoyama period. He ruled Kurokawa Castle and its environs in Mutsu Province in northern Japan. He was also responsible for building Mukaihaguroyama Castle, which he used as a residence when in retirement. The castle was completed in 1561.