Ryūyō, Shizuoka
Ryūyō was a town located in Iwata District, Shizuoka Prefecture, Japan.
As of March 1, 2005, the town had an estimated population of 19,756 and a density of 836 persons per km². The total area was 23.62 km².
On April 1, 2005, Ryūyō, along with the towns of Fukude and Toyoda, and the village of Toyooka, was merged into the expanded city of Iwata and thus no longer exists as an independent municipality.