Lisieux Cathedral (Cathédrale Saint-Pierre de Lisieux) is a former Roman Catholic cathedral, and a national monument of France, in Lisieux.

It was the seat of the Bishop of Lisieux. The diocese of Lisieux was abolished under the Concordat of 1801 and merged into the Diocese of Bayeux.

The cathedral was built between 1170 and the middle of the 13th century. The west front of the building consists of three portals surmounted by two towers. The south tower was built in the 16th century and at the top bears a 17th century flèche. Buttresses were added to the south face in the 15th century.