He was born at Dinan. Educated at Rennes, he took up the profession of journalism, coming to Paris in 1867. He was for a short period editor-in-chief of L'Independent du midi of Nîmes, but joined the staff of Le Rappel on its foundation, and worked subsequently on other journals.
He took an active part in municipal life, and waged a keen campaign against the prefecture of police, for which he suffered six months' imprisonment. He entered the chamber of deputies in 1885 as representative of the Ier arrondissement of Paris and was rapporleur general of the budget of 1888. He became minister of public works under the premiership of PE Tirard in 1889, retaining his portfolio in the cabinet of Charles de Freycinet until 1892.
- La Comédie protectionniste (1905; Eng. trans. The Comedy of Protection)
- La Science économique (1st ed. 1881; 3rd ed. 1907)
- La Prostitution (1882)
- La Tyrannie socialiste (1893), all three translated into English
- Les Conflits du travail et leur solution (1903)
- La Démocratie individualiste (1907).
Guyot died, aged 84, in Paris.
- This article incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). Encyclopædia Britannica (11th ed.). Cambridge University Press