Henriette Delalain was a French painter, engraver, and illustrator.

She was born on April 20, 1886, in the 10th arrondissement of Paris. Her father was a salesman.

She studied under Marcel Baschet and Henri Royer at Académie Julian.

She painted portraits, nudes, and genre scenes. She became a member of the Société des Artistes Français and exhibited at its Salon beginning in 1908.

She also illustrated books and postcards.

She died in 1945 and was buried in the cemetery in Garches, where her gravestone reads “Mlle Henriette Delalain 1886-1945,” indicating that she never married.