Abbey church of St James, Romanesque parish church in Lébény, Hungary

The Abbey Church of St James is a Romanesque parish church in Lébény with a basilical layout, three naves, and two western towers. It has a polygonal apse, a south portal, and a west portal. The nave vaulting dates from the 17th century, while the rich carvings of the main and south portals are among the finest examples of Hungarian Romanesque sculpture.

Construction began around the turn of the 12th–13th century, when Poth comes and his brothers gave land to the Benedictines; the 1206 date carved into an outer wall suggests the church was already standing when King Andrew II confirmed the donation in 1208. Tatar troops and later the armies of Ottokar II of Bohemia devastated the abbey in the 13th century. After 1541 the monks moved to Pannonhalma, and the Jesuits, who received the ruin in 1631, saw it burned again by the Turks in 1683.

The parish takes its name from Saint James the Apostle, whose statue stands on the main altar with a small model of the church at his feet. The 800th anniversary of the former Benedictine abbey church was marked in 2006, and in August 2005 Bishop Pápai Lajos consecrated a new large bell cast by Gombos Miklós.

The church stands centrally on Templom Square and is easily reached on foot from local bus stops in the area. Arriving early in the day offers a quieter experience to explore the building and its surroundings.

The 1862–1865 interior restoration and 1872–1879 exterior renewal were directed by the Nuremberg architect August Ottmar Essenwein, with Friedrich von Schmidt advising, and paid for entirely by Baron János Sina, who gave 20,000 forints. The work made Lébény the first fully restored monument in Hungary.