Joseph Jean Baptiste Fleuriau d'Armenonville (22 January 1661 – 27 November 1728) was a French politician. Fleuriau d'Armenonville was born in Paris and obtained a place in government service in 1683 through his brother-in-law, Claude Le Peletier de Morfontaine, then Controller-General of Finances. He served in the financial administration until 1689 when he purchased a post as councillor serving with the Parlement at Metz. He returned to the finance in 1701 when he was named as director-general of finances, holding the sinecures of "bailli and captain" of Chartres. In 1705 he was appointed to the senior grade of Conseiller d'État.