Unryū (雲龍) or Cloud Dragon, a mythical creature in Japanese folklore, may refer to: Warships Unryū-class aircraft carrier, World War II Japanese aircraft carriers Japanese aircraft carrier Unryū, the lead ship of her class of fleet aircraft carriers built for the Imperial Japanese Navy (IJN) during World War II JS Unryū (SS-502), a Japanese Sōryū-class submarine launched in 2008 Other uses Akari Unryu, an anime character Unryū Kyūkichi, early 19th-century sumo champion fiber from the paper mulberry tree is sometimes known as Unryū and is also known as Washi