Lucien Moreau (January 16, 1875 – April 6, 1932) was a French journalist, monarchist and member of the Action Française.

He was the grand-nephew of Augustin Boyer, brother-in-law and partner of Pierre Larousse, the creator of the Grand dictionnaire universel du XIXe siècle.

At the end of the 19th century his father Émile, uncles Auguste and Georges and their cousin Cition owned a third of the thriving Éditions Larousse publishing house.

[5] Members pledged to fight the republican regime and to support restoration of the monarchy under Prince Philippe, Duke of Orléans (1869–1926).

He originated the concept of the Institut d'Action française, which arranged conferences and trained party cadres.