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, the Nereids or Nereides ( ; grc, Νηρηΐδες, Nērēḯdes; , also Νημερτές) are sea nymphs (female spirits of sea waters), the 50 daughters of the ' Old Man of the Sea' Nereus and the Oceanid Doris, sister ...

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 ''OneShot'' is an adventure game developed by indie studio Future Cat and published by Degica. Based on a 2014 free version, it was released for Steam on December 8, 2016, and on itch.io on March 12, 2020. A version adapted for consoles, ''OneS ...

Science and technology