Ryōtarō Okiayu (置鮎 龍太郎 Okiayu Ryōtarō) is a seiyū, who was born on November 17, 1969 in Kokuraminami-ku, Kitakyūshū, Fukuoka Prefecture. He is currently affiliated with Aoni Production. He married the second voice of Nachiguron, Nao Nagasawa and had a daughter, but they are now divorced.