The 2009 Formula 3 Sudamericana season was the 23rd Formula 3 Sudamericana season.
It began on 6 June 2009, at Autódromo Internacional Nelson Piquet in Brasília and ended on 22 November at Autódromo Internacional de Curitiba.
Brazilian driver Leonardo Cordeiro won the title.
Bold – PoleItalics – Fastest Lap