Björn Envall (born 1942), is a retired automobile designer. He was head of the design department at Saab. He started his career in the 1960s at Saab as an apprentice under Sixten Sason, especially helping with the design of the Saab 99 and the ill-fated Saab Catherina sports car. In fact, after the failure of that design to be accepted by Saab, he designed (on paper only) a further and progressive two-seater, which was never built.