Grand Poitiers is the communauté urbaine, an intercommunal structure, centred on the city of Poitiers. It is located in the Vienne department, in the Nouvelle-Aquitaine region, western France. It was created on 1 January 2017 as a communauté d'agglomération and transformed into a communauté urbaine on 1 July 2017. Its area is 1064.7 km<sup>2</sup>. Its population was 196,530 in 2020, of which 90,033 in Poitiers proper.
The communauté urbaine consists of the following 40 communes: