Marie Lebec (born 17 December 1990) is a French politician of La République En Marche!

Lebec has been a lobbyist for the consulting firm Euralia, from which she takes leave to stand for the legislative elections in 2017.

[4] Since 2019, Lebec has been part of the LREM parliamentary group's leadership around its chairman Gilles Le Gendre.

[5] In 2020, she assisted Le Gendre with coordinating the parliamentary group's support for the government's pension reform plans.

[6] In July 2019, Lebec voted in favor of the French ratification of the European Union’s Comprehensive Economic and Trade Agreement (CETA) with Canada.