Ryū Ryū Ko (Chinese: 劉龍公 Okinawan: ルールーコウ fl. 1793 - 1882), also known as Liu Long Gong, was a Chinese martial artist who most likely practiced the Fujian White Crane style of Kung Fu. His most notable students included many of the founders of different Okinawan martial arts which later produced Karate. These students included Higaonna Kanryō who founded Naha-te which became Gōjū-ryū. The kata Sanchin, taught in Gōjū-ryū and many other Naha-te based styles of Karate, was originally taught by Ryū Ryū Ko.