The 2009 Ulster Grand Prix incorporating the Dundrod 150 National Road Races took place between Wednesday 12 August and Saturday 15 August 2009 on the 7.401 mile Dundrod Circuit, County Antrim, Northern Ireland. Six races were held with Ian Hutchinson, Ryan Farquhar, Guy Martin, William Dunlop (two wins) and Conor Cummins sharing the victories. Farquhar also took a class win in the Supertwins.