Rennes is a city in the east of Brittany in Northwestern France at the confluence of the rivers Ille and Vilaine. Rennes is the prefecture of the Brittany region and Ille-et-Vilaine department. In 2023, the city had a population of 230,890 inhabitants, while the larger metropolitan area is the 10th most populated in France with a population of 789,516. The inhabitants of Rennes are called Rennais (masculine) and Rennaises (feminine) in French.