The Biddende Maria (Mary in Prayer or Virgin at prayer) is an oil-on-panel painting by the Flemish Renaissance artist Quentin Matsys.

[1] The painting is currently housed at the Royal Museum of Fine Arts in Antwerp.

The panel is the interior of the left wing of a diptych[1][2] with the painting on the other side being a Salvator Mundi.

[1] Her head is covered with a gauze veil upon which rests a crown.

The painting's delicate rendering and soft hues create a sweetness that is tempered by the figure's stately and austere bearing.