Léon-Charles Bienvenu (25 March 1835, in Paris – January 1911, in Paris) was a French journalist and writer known for his biting satires on political and social life during the Second French Empire. He was also known by his pen-name Touchatout.

This article may be expanded with text translated from the corresponding article in French. (March 2009) Click [show] for important translation instructions. View a machine-translated version of the French article. Machine translation like DeepL or Google Translate is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Consider adding a topic to this template: there are already 5,150 articles in the main category, and specifying|topic= will aid in categorization. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing French Wikipedia article at [[:fr:Touchatout]]; see its history for attribution. You should also add the template {{Translated|fr|Touchatout}} to the talk page. For more guidance, see Wikipedia:Translation.