Jandakot is an electoral district of the Legislative Assembly in the Australian state of Western Australia. The district is based in the southern suburbs of Perth and is named for the suburb of Jandakot. It also includes the suburbs of Canning Vale (part), Forrestdale, Harrisdale, Leeming, Piara Waters and Treeby. Politically, the district is a marginal one. Based on the results of the 2005 state election, the district was created with a Labor Party majority of 53.6% to 46.4% versus the Liberal Party.