Noémie de Rothschild (née Halphen; June 29, 1888 – March 15, 1968) was a French philanthropist and property developer.

Rothschild turned her hôtel particulier in Paris into a hospital during World War I.

[1] In 1916, she decided to develop a ski resort in France to avoid having to holiday alongside the Germans in St. Moritz, Switzerland.

[1][2] By 1919, she founded Société Française des Hôtels de Montagne.

[1] She married Maurice de Rothschild, a banker and politician.