Sébastien Lecornu

President of the Departmental Council of EureIn office
1 July 2021 – 16 December 2022Preceded byPascal LehongreSucceeded byAlexandre RassaërtIn office
2 April 2015 – 10 July 2017Preceded byJean-Louis DestansSucceeded byPascal LehongreSenator for EureIn office
1 October 2020 – 1 November 2020Succeeded byPersonal detailsBorn (1986-06-11) 11 June 1986
PartyRenaissance (since 2017)UMP (2002–2015)
LR (2015–2017)Alma materPanthéon-Assas UniversitySignature

Sébastien Lecornu (French pronunciation:; born 11 June 1986) is a French politician who has served as Prime Minister of France since September 2025. Positioned on the right of the ideological political spectrum, Lecornu has promoted Gaullist, Séguinist, and socially conservative beliefs.

Since leaving The Republicans (LR) in 2017, Lecornu has been a member of Renaissance (RE). Lecornu was president of the Departmental Council of Eure from 2015 to 2017. In government, he served as secretary of state to the minister of the ecological and inclusive transition (2017–2018), minister for local authorities (2018–2020), minister of the overseas (2020–2022) and minister of the armed forces (2022–2025).

On 9 September 2025, Lecornu was appointed as prime minister by Emmanuel Macron after the Bayrou government was brought down by a vote of no confidence in the National Assembly. He unveiled his cabinet 26 days after being nominated and resigned hours later, making his first government the shortest-lived in the history of the French Fifth Republic. He remained in office as a caretaker prime minister until he was reappointed by President Macron on 10 October 2025.