The 2009 Ginetta Junior Championship was the fifth season of the Ginetta Junior Championship. The season began at Brands Hatch on 4 April 2009 and concluded after 20 races over 10 events also at Brands Hatch on 4 October 2009. This was the last season that the drivers raced Ginetta G20 cars. They were replaced with the G40 in 2010.