Louis-Félix Guinement, chevalier de Kéralio (14 September 1731, Rennes – 10 December 1793, Groslay) was a French soldier, writer and academic.

In this post, he proposed to Maréchal de Broglie that the death penalty be abolished for army marauders and to replace it with softer but systematically applied sentences.

Around 1780, the chevalier de Keralio and the editor Panckoucke signed a contract to edit 4 volumes on "Art militaire" in the Encyclopédie Méthodique, published from 1784 to 1787, for which he wrote a preliminary discourse and several articles.

It is for the Académie des inscriptions et belles-lettres that he is a member of the competition jury in April 1790 as director of the institute for the deaf and the blind after the death of Abbé de l'Epée.

A member of the Patriotic Society and not adhering to the radicalization of his daughter's ideas, he stopped his political collaboration after the Champ-de-Mars massacre on 17 July 1791.

"Vivre Libre ou Mourir" He imposed this motto on the Battalion of the Filles-Saint-Thomas in September 1789; it then becomes one of the most famous currency slogans during the French Revolution.