The Abbey of Saint-Étienne, also known as the Abbaye aux Hommes, is a Benedictine monastery founded by William the Conqueror in the city of Caen, Normandy, France. It was built in the 11th century and is one of the most notable Romanesque monuments in Normandy.

The church of the abbey is dedicated to Saint Stephen, the patron saint of Caen. The building is famous for its imposing size and architectural style, which features a Norman Romanesque nave and a Gothic choir. The church is home to many significant tombs, including that of William the Conqueror.

The abbey was severely damaged during World War II but has since been restored. Today, the abbey is a major tourist attraction and a cultural center. It is also used for concerts, exhibitions, and other events. Visitors can take guided tours of the church and the abbey's grounds, which include a cloister, chapter house, and refectory. The abbey's museum houses a collection of art and artifacts from the Middle Ages and the Renaissance.