The 5th constituency of the Ain is a French legislative constituency in the Ain département. It was created by ordinance nð2009-935 of 29 July 2009, ratified by the French Parliament on 21 January 2010. It consists of the cantons of Ambérieu-en-Bugey, Brénod, Champagne-in-Valromey, Hauteville-Lompnes, Izernore, Lhuis, Nantua, North Oyonnax, Oyonnax South, Poncin, Saint-Rambert-en-Bugey, Virieu-le-Grand. The constituency was first contested in the 2012 legislative elections.
|- style="background-color:#E9E9E9;text-align:center;" ! colspan="2" rowspan="2" style="text-align:left;" | Candidate ! rowspan="2" colspan="2" style="text-align:left;" | Party ! colspan="2" | 1st round ! colspan="2" | 2nd round |- style="background-color:#E9E9E9;text-align:center;" ! width="75" | Votes ! width="30" | % ! width="75" | Votes ! width="30" | % |- | style="color:inherit;background-color:" | | style="text-align:left;" | Damien Abad | style="text-align:left;" | Union for a Popular Movement | UMP | | 31.81% | | 56.40% |- | style="color:inherit;background-color:" | | style="text-align:left;" | Josiane Exposito | style="text-align:left;" | Socialist Party | PS | | 28.51% | | 43.60% |- | style="color:inherit;background-color:" | | style="text-align:left;" | Patrick Sokolowski | style="text-align:left;" | National Front | FN | | 17.99% | colspan="2" style="text-align:left;" | |- | style="color:inherit;background-color:" | | style="text-align:left;" | Michel Perraud | style="text-align:left;" | Radical Party | PRV | | 9.49% | colspan="2" style="text-align:left;" | |- | style="color:inherit;background-color:" | | style="text-align:left;" | Mylène Ferri | style="text-align:left;" | Left Front | FG | | 7.32% | colspan="2" style="text-align:left;" | |- | style="color:inherit;background-color:" | | style="text-align:left;" | Jean Galienne | style="text-align:left;" | Ecologist | ECO | | 1.07% | colspan="2" style="text-align:left;" | |- | style="color:inherit;background-color:" | | style="text-align:left;" | Brigitte Sansano | style="text-align:left;" | Miscellaneous Right | DVD | | 0.73% | colspan="2" style="text-align:left;" | |- | style="color:inherit;background-color:" | | style="text-align:left;" | Patrick Royer | style="text-align:left;" | Ecologist | ECO | | 0.72% | colspan="2" style="text-align:left;" | |- | style="color:inherit;background-color:" | | style="text-align:left;" | Bernard Favre | style="text-align:left;" | Ecologist | ECO | | 0.56% | colspan="2" style="text-align:left;" | |- | style="color:inherit;background-color:" | | style="text-align:left;" | Jean-Michel Boulme | style="text-align:left;" | Far Left | EXG | | 0.53% | colspan="2" style="text-align:left;" | |- | style="color:inherit;background-color:" | | style="text-align:left;" | Christophe Ceresero-Lanes | style="text-align:left;" | Far Left | EXG | | 0.44% | colspan="2" style="text-align:left;" | |- | style="color:inherit;background-color:" | | style="text-align:left;" | Bernard Leger | style="text-align:left;" | Miscellaneous Right | DVD | | 0.42% | colspan="2" style="text-align:left;" | |- | style="color:inherit;background-color:" | | style="text-align:left;" | Guy Largeron | style="text-align:left;" | Far Left | EXG | | 0.40% | colspan="2" style="text-align:left;" | |- | colspan="8" style="background-color:#E9E9E9;"| |- style="font-weight:bold" | colspan="4" style="text-align:left;" | Total | | 100% | | 100% |- | colspan="8" style="background-color:#E9E9E9;"| |- | colspan="4" style="text-align:left;" | Registered voters | | style="color:inherit;background-color:#E9E9E9;"| | | style="color:inherit;background-color:#E9E9E9;"| |- | colspan="4" style="text-align:left;" | Blank/Void ballots | | 1.32% | | 3.23% |- | colspan="4" style="text-align:left;" | Turnout | | 57.18% | | 54.70% |- | colspan="4" style="text-align:left;" | Abstentions | | 42.82% | | 45.30% |- | colspan="8" style="background-color:#E9E9E9;"| |- style="font-weight:bold" | colspan="6" style="text-align:left;" | Result | colspan="2" style="background-color:" | UMP WIN