| Kubaka Castle 久場嘉城 | |
| Location: | Miyakojima, Okinawa |
| Open To Public: | Exterior only |
| Type: | Gusuku |
| Built: | before 16th century |
| Builder: | Kubaka Aji |
| Materials: | Ryukyuan limestone, wood |
| Used: | before 16th century-18th century |
| Condition: | Ruins |
| Ownership: | Private owner |
| Controlledby: | (~1500–1879) (1879–1945) United States Military Government of the Ryukyu Islands (1945–1950) United States Civil Administration of the Ryukyu Islands(1950–1972)  Japan (1972–present) |
| Occupants: | Kubaka Aji, Fumon Koujin |
| Map Type: | Japan Okinawa Prefecture#Japan |
| Map Relief: | 1 |
is a Ryukyuan gusuku located near the shore of Irie Bay in southern Miyakojima, Okinawa, in former Ueno Village. It is the only castle on Miyako Island where the original castle layout is still visible.[1]
The castle was built sometime prior to the 16th century. It was ruled by the Aji of Kubaka. The castle was 56.4m (185feet) long and 45.5m (149.3feet) wide with the gate facing southwest.[2]
There is a legend that a merchant from Ryukyu named Tamagusuku fell in love with Koujin, daughter of the Lord of Kubaka Castle, and the two had a son. After returning from a trip, Tamagusuku overheard Koujin refer to him as an “exile” or “wanderer” while talking to their son. He told her that he was an important trader, then grabbed the boy and took him to Okinawa where he would grow up to be a Lord himself. Koujin then wandered on the shore near the castle praying for death, until one day a tsunami washed her away.[3] [4]