Firo or FIRO and Firos or FIROS may refer to:
People Firos (politician), Youth Leader & General Secretary of Muslim Youth League in India Firo, one of the protagonists in the video game Firo & Klawd Firos Shah (also Firuz Shah Tughlaq; 1309–1388), sultan of Delhi Georgios Firos (also Giorgos Foiros, born 1953), Greek footballer
Other uses Firo (cryptocurrency), a cryptocurrency Firo (Niger), a village in the Tongo Tongo, Niger Firos (artillery), FIROS, an Italian truck-mounted, field rocket system Fundamental interpersonal relations orientation, a theory of interpersonal relations