Musée des Beaux-Arts de Blois, Fine Arts Museum in Blois, France.

The Musée des Beaux-Arts de Blois occupies the Louis XII wing of the Château de Blois. Its eight gallery rooms open off a corridor that lets visitors cross the wing without walking through every room in a row, unlike the medieval castle layout. The collection covers paintings, sculpture and decorative arts from the 16th to the 19th century, including French and Flemish tapestries.

The museum was founded in 1850 and has occupied the Louis XII wing of the Château de Blois since 1869. A corridor was added to link the rooms, so visitors no longer had to pass through every chamber in a row as in the medieval layout. The fireplaces were remade with the emblems of Louis XII and his wife, after the queen's book of hours, by Louis Delcros.

The portrait cabinet holds 16th- and 17th-century paintings from the châteaux of Saint-Germain-Beaupré and Beauregard, among them Anne of Austria, the Grande Mademoiselle and a Marie de Médicis after Rubens. The fireplaces were rebuilt with the emblems of Louis XII and his wife, copied from the queen's book of hours by Louis Delcros.

A visit can typically be completed in a few hours since the eight gallery rooms are manageable and not overwhelming in scope. The location within the castle is easy to access and the spaces are well-lit with stairs and elevators available throughout.

In 2025 a leaf of the Archimedes Palimpsest, missing since the first half of the 20th century, was identified in the museum's collections during a systematic search for palimpsests. One side carries the Treatise on the Sphere and the Cylinder; the other shows the prophet Daniel between two lions. How it reached Blois is unknown.