Lisieux (French: [lizjø] ⓘ) is a commune in the Calvados department in the Normandy region in northwestern France.

The oppidum has been pinpointed to a place referred to as le Castellier,[3] located 3 kilometers (1.9 mi) to the southwest of the town.

The second main road serving Lisieux is the D579, leading to Deauville to the north and the department of Orne to the south.

Lisieux benefits from a bypass, built in the 1990s, running to the south of the town, easing traffic in the town-centre, particularly on boulevard Sainte-Anne.

Since the Middle Ages Lisieux has been the seat of one of the seven Roman Catholic dioceses of Normandy under the jurisdiction of the ecclesiastical province of Rouen.

The best-known of the Bishops of Lisieux is Pierre Cauchon, who had a decisive influence during the trial of Joan of Arc.

Devotion to Sainte-Thérèse also known as St. Teresa of the Child Jesus who lived in the nearby Carmelite convent has made Lisieux France's second-most important site of pilgrimage, after the Pyrenean town of Lourdes.

Sainte-Thérèse de Lisieux died in 1897, she was canonized in 1925 and named a doctor of the church by Pope John Paul II in 1997.

It is possible to visit the chapel and exterior of the Carmel or monastery where Thérèse lived, but the remainder of the building is closed to visitors.

[citation needed] From the outset, the architect designed quadripartite rib vaults and flying buttresses, making it one of Normandy's first Gothic buildings.