The Museo dell'Opera del Duomo (Museum of the Works of the Cathedral) in Florence, Italy is a museum containing many of the original works of art created for the Cattedrale di Santa Maria del Fiore, the cathedral (Duomo) of Florence. 

The museum is located just east of the Duomo, near its apse. It opened in 1891, and now houses what has been called "one of the world's most important collections of sculpture."[