Ryuei-ryu (劉衛流 Ryūei-ryū?) is an Okinawan style of Karate. It was originally a family style of the Nakaima family of Naha and is now one of the internationally recognized Okinawan Karate styles. It is practiced in the United States, Argentina, Venezuela, Europe, and Okinawa.
This style of karate was first introduced to Okinawa around 1875 by Norisato Nakaima. Born of wealthy parents in Kume, Okinawa, Nakaima was a good scholar and, at the age of 19, went to Fuchou, China for advanced studies in the martial arts. There a former guard to the Chinese embassies in the Ryukyu islands introduced him to a Chinese boxing teacher known as Ru Ru Ko, who also taught Sakiyama Kitoku and, according to some sources, many years later Kanryo Higashionna. Nakaima was accepted as a disciple, and, after over 7 years of training, received a certificate of graduation from the master. He was trained in a variety of arts and skills ranging from physical combative techniques to Chinese medicine and herbal healing remedies. Just before leaving China, in order to further his experience in the martial arts, Nakaima traveled to the Fujian, Canton, and Beijing areas, where he collected a number of weapons and scrolls to bring back home with him.