Marie-Suzanne Giroust (9 March 1734 – 31 August 1772), known as Madame Roslin, was a French painter, miniaturist, and pastellist, known for her portraits.

She was the daughter of Barthélemy Giroust, Jeweller to the King's Wardrobe (d. 1741) and Marie Suzanne Le Roy (d.

[4] Her reception piece, Portrait of the Sculptor Jean-Baptiste Pigalle (1770), was praised by Denis Diderot in 1771 for its "beautiful and strong colors.

"[5] Giroust served as a model for La Dame au voile (The Lady with the Veil) (1768), painted by her husband.

She also appears in Alexander Roslin's group portrait The Artist and His Wife Marie-Suzanne Giroust Portraying Henrik Wilhelm Peill (1767).