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.
All rounds were held in the United Kingdom.