Rokkaen is a historic mansion in Kuwana City, Mie Prefecture, Japan, completed in 1913 during the late Meiji period. It was built as the residence of Moroto Seiroku, a wealthy rice magnate, and uniquely combines Western and Japanese architectural styles in one building. The Western-style house was designated as an Important Cultural Property in 1997, and the gardens were designated as a Natural Scenic Site in 2001.