Étienne Maynon d'Invault (born 1721, Paris – 1801, Saint-Germain-en-Laye) was a French statesman.
He was then master of requests (4 March 1747 - 29 January 1766), president of the Grand Council (1753), steward of Picardy in Amiens (August 1754).
He was appointed Comptroller General of Finance on 22 September 1768 and Minister of State on 10 December 1768.
He proposed extending the second Vingtième until 1772, which raised strong remonstrances of the Parliaments and drove Louis XV to hold a lit de justice on 11 January 1769 to register the edict.
Following this meeting, Louis XV decided not to submit the measures envisaged in the expanded Council, which led to his resignation on 19 December 1769.