Maria Antonia Merkelbach (1904–1985) was a professional photographer, designer, and painter.
In photography she followed her father, Jacob Merkelbach, a famous fashion photographer of Amsterdam, by working in his well-known studio called "Atelier J.
Merkelbach" that was established by him in April 1913.
She also worked as model in highly fashionable clothes for the studio.
This studio functioned under her direction after her father's death in 1942 till 1969.
She and her husband took many portrait pictures of Queen Wilhelmina out of which one portrait was chosen as a state photograph.