Fujiwara no Morosuke (藤原 師輔, January 11, 909 – May 31, 960), also known as Kujō-dono or Bōjō-udaijin, was a Japanese statesman, courtier and politician during the middle Heian period. Considered a learned scholar and well-versed in the customs of the court, he supported the court's government as udaijin during the reign of Emperor Murakami. Morosuke's eldest daughter Fujiwara no Anshi, empress consort to Emperor Murakami, gave birth to two princes who later became Emperor Reizei and Emperor En'yū, putting Morosuke's lineage in an advantageous position as the maternal relatives of the Emperor.