Julien Denormandie (born 14 August 1980) is a French engineer and politician of La République En Marche!

After being admitted in 2000 to Agro ParisTech, Denormandie passed the entry exam into the Rural, Water and Forest Engineer's Corps in 2002.

After being named a Countryside, Water and Forests engineer on 1 October 2004, Denormandie was assigned to a position at the Ministry of the Economy and Finances.

He rejoined the ministerial cabinets, before becoming Counsel to the Minister of Foreign Commerce Nicole Bricq and Minister of Finances Pierre Moscovici in July 2012, a position where he was noticed by the Cabinet Director Rémy Rioux, then by Emmanuel Macron, the then-secretary general at the Élysée (French Presidential Office).

[8] Since he left government in 2022, Denormandie has been serving as Chief Impact Officer at French startup Sweep, a carbon emission management service.