| Country: | France |
| Ecologist Party | |
| Native Name: | Parti écologiste |
| Native Name Lang: | French |
| Foundation: | 2 September 2015 |
| Split: | Europe Ecology – The Greens |
| Founders: | François de Rugy Jean-Vincent Placé |
| Leader1 Title: | President |
| Leader1 Name: | François de Rugy |
| Leader2 Title: | President in the National Assembly |
| Leader2 Name: | Gilles Le Gendre |
| Position: | Centre-left[1] |
| National: | Ensemble Citoyens (since 2021) La République En Marche! (since 2017) Union of Democrats and Ecologists (2015–2016) |
| Colours: | Blue, green |
| Seats1 Title: | National Assembly |
| Seats2 Title: | Senate |
The Ecologist Party (French: Parti écologiste, PÉ), founded as Écologistes !, is a centre-left French political party that holds pro-European views,[2] created in September 2015 by François de Rugy, President of the Europe Ecology – The Greens (EELV) group in the National Assembly and Jean-Vincent Placé, the President of the EELV group in the Senate.
This party was initially created as a reaction to the decision taken by EELV of making alliances with the Left Front. The aim of UDE founders was to create a reformist centre-left party, accepting globalization and market economy, and supporting president François Hollande. The founders of UDE declared they wanted to become a strong ally of the Socialist Party, and attract people from EELV or from the Democratic Movement.[3] [4]
Since 2017, the party is part of La Republique en Marche!.