| 1st constituency of Ille-et-Vilaine | |
|---|---|
 National Assembly of France | |
 Constituency in department | |
 Ille-et-Vilaine in France | |
| Deputy | |
| Department | Ille-et-Vilaine |
| Cantons | (pre-2015) Bruz, Rennes-3, Rennes-4, Rennes-5, |
| Registered voters | 89,688 |
The 1st constituency of Ille-et-Vilaine is a French legislative constituency in the Ille-et-Vilaine département. Like the other 576 French constituencies, it elects one MP using the two-round system, with a run-off if no candidate receives over 50% of the vote in the first round.