Motobu Chōki was an Okinawan karate master and founder of Motobu-ryū. He was born into a branch of the Ryukyuan royal family, and at the age of 12, he and his older brother Motobu Chōyū were invited by Ankō Itosu to be taught karate.

Motobu-ryū (本部流) is a karate school founded in 1922 by Motobu Chōki from Okinawa. Its official name is Nihon Denryū Heihō Motobu Kenpō, or Motobu Kenpō for short. Motobu-ryū has the characteristics of koryū karate, the martial art known as tī or tōdī, which predates the birth of modern karate, and emphasizes kumite rather than kata.