Constituencies that had only one round in the 2012 French Legislative Elecitons
- Alpes-Maritimes's 6th constituency
- Alpes-Maritimes's 7th constituency
- Ardennes's 3rd constituency
- Ariège's 1st constituency
- Loire-Atlantique's 8th constituency
- Gironde's 7th constituency
- Lot's 2nd constituency
- Manche's 4th constituency
- Puy-de-Dôme's 4th constituency
- Eure-et-Loir's 4th constituency - Philippe Vigier also won 2007 in one round