The 2009 election to the Grand Council was held in the canton of Geneva, Switzerland, on 11 October 2009. All 100 members of the Grand Council were elected for four-year terms.
The Liberal Party remained the largest party, with twenty seats, having lost three since 2005. The centre-right 'Entente', between the Liberals, Free Democratic Party, and Christian Democrats lost a total of five seats. The main winners were the populist Geneva Citizens' Movement, who almost doubled their number of seats to draw level with the Green Party as the second-largest contingent. The far left alliance between solidaritéS and the Swiss Party of Labour failed to overcome the 7% threshold for representation, despite each having each separately received more than 6% at the 2005 election.
- ^ Ruetschi, Pierre (12 October 2009). "Stauffer et le génie de la rue". Tribune de Genève.