An election to all 9 seats on Letterkenny Town Council took place on 5 June 2009 as part of the 2009 Irish local elections. Councillors were elected in Letterkenny for a five-year term of office on the electoral system of proportional representation by means of the single transferable vote (PR-STV).
It was the last election for the town council, as all town councils in Ireland were abolished in 2014.
The Letterkenny Residents Party was registered in 2008 to contest local elections only. Following the dissolution of Letterkenny Town Council in 2014, Crossan unsuccessfully contested the Letterkenny local electoral area for the party. The party was deregistered in 2015.