Miyohime (美代姫) or Enkyū Myōgetsu (圓久妙月) was a Japanese Onna-musha from the late-Sengoku period.

After her husband and Ryūzōji Takanobu were slain in the Battle of Okitanawate, she became the head of 'Kamafunatsu castle' and 'Hyakutake clan'.

In 1570, Miyohime assisted Nabeshima Naoshige in defending Saga Castle when it was surrounded by a 60,000-man Ōtomo clan army, and it is said that she commanded standing soldiers at the door.

Miyohime successfully defended Kamafunatsu castle, clearing the enemy with reinforcements from Nakano Kiyoaki.

After resigning her military career, she probably lived as a Buddhist nun until the last day of her life.