Rue Lhomond is a street in the 5th arrondissement of Paris, France. It is located in the quartier du Val-de-Grâce and has existed since the 15th century. It was once known as rue des Poteries after its Gallo-Roman pottery workshops (re-discovered in the 18th century), then from around 1600 as rue des Pots and finally rue des Postes.^[1] It was given its present name in 1867 after the priest, grammarian and scholar Charles François Lhomond (1727-1794).

You can help expand this article with text translated from the corresponding article in French. (December 2016) Click [show] for important translation instructions. 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 6,170 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:Rue Lhomond]]; see its history for attribution. You may also add the template {{Translated|fr|Rue Lhomond}} to the talk page. For more guidance, see Wikipedia:Translation.

The street has housed several Catholic seminaries and convents, along with a British seminary established at number 22 by permission of Louis XIV of France in 1684 and active until 1790.^[2]

Rue Lhomond features in the Georges Simenon novel ′Maigret Takes a Room′. In the novel Maigret takes a room in a boarding house to discover who shot his subordinate Janvier.