Ossa is a Spanish motorcycle manufacturer which was active from 1924 to 1982 and reborn in 2010. Founded by Manuel Giró, an industrialist from Barcelona. Ossa was best known for lightweight, two-stroke engine bikes used on trails, in motorcross and enduro. The company was known originally as Orpheo Sincronic Sociedad Anónima (O.S.S.A.) and was later renamed Maquinaria Cinematográfica, S.A.