Saint-Hilaire-de-Loulay (French pronunciation: [sɛ̃.t‿ilɛʁ də lulɛ]) is a former commune in the Vendée department in the Pays de la Loire region in western France.

On 1 January 2019, it was merged into the new commune Montaigu-Vendée.

[2] The Château de la Preuille, one of the oldest castles in the Loire region,[citation needed] is located here.

Saint-Hilaire-de-Loulay is the home town of Thierry Rautureau.

[3] His restaurant "Loulay" is named to reflect his home town.