Proto or PROTO may refer to: Language Proto-, an English prefix meaning "first" Media Proto (magazine), an American science magazine Radio Proto in Cyprus Music Proto (Holly Herndon album), 2019 Proto (Leo O'Kelly album), 2002 Proto (band), a progressive rock band from Memphis, Tennessee Organizations Proto (tools), a tool company (formerly Plomb Tools), now a division of Stanley Black & Decker Proto Motors, a South Korean sports car manufacturer and refitter Proto Records, a British record company active in the 1980s; see Barry Evangeli Proto (paintball), a paintball equipment manufacturing company People Non-fictional Frank Proto, American composer and bassist Ludovic Proto (born 1965), French boxer Neil Thomas Proto (born 1945), American lawyer, teacher, lecturer, and author Silvio Proto, Belgian goalkeeper Proto (see Protus and Hyacinth), Christian martyr during the persecution of Valerian I Fictional Proto, one of the Nereids in Greek mythology Proto (Ghost in the Shell), a fictional character in Masamune Shirow's Ghost in the Shell anime and manga Proto, a more advanced prototype of the prophetbot from the video game OneShot Science and technology Proto-, the prefix, as used in taxonomy. Siebe Gorman Proto, a type of rebreather breathing set SEAT Proto, concept cars PROTO (fusion reactor) See also Protos (disambiguation)