Charles Lacheroy (22 August 1906 – 25 January 2005) was a French Army officer, theorist of counterinsurgency warfare, and member of the Organisation armée secrète.

His father was a decorated infantry second lieutenant (Legion of Honour and Croix de Guerre), killed on 2 August 1916 at Fleury, next to Douaumont fort.

Lacheroy chose the Colonial infantry and obtained a commission as second lieutenant in the 3rd Méhariste company in Levant at Latakia, where he remained until 1935.

Promoted to Lieutenant Colonel, Lacheroy was transferred to Paris and made director of the Centre d'études asiatiques et africaines (CEAA).

In the early 1960s, Lacheroy resigned his commission to organise a coup d'état against President Charles de Gaulle.