St-Jacques de Lambour church, Gothic church ruins in Pont-l'Abbé, France.

St-Jacques de Lambour is a ruined Gothic church in Pont-l'Abbé, built from the 13th to the 16th century. Its central section dates from around 1260, with pillars, arcades and capitals in the Pont-Croix style, while the facade, square tower and south porch were added in the early 16th century. The tower has two rows of gargoyles and is flanked by two hexagonal turrets, one bearing a bas-relief of a fishing boat with its crew.

Begun around 1260, the church served the trève of Lambour, on the left bank of the Rivière de Pont-l'Abbé dependent on Combrit. The façade, square tower and south porch were added in the early 16th century. In September 1675, after the Bonnets Rouges revolt, the Duke of Chaulnes had the spire and tower tops cut down; they were never rebuilt. In 1899 the mayor, Count de Najac, had the roof removed and the statues moved to Notre-Dame-des-Carmes.

A Saint James celebration draws people to the ruins every year in late July, reconnecting locals with this place that has defined their community for centuries. The gathering shows how much this church still matters to people despite its current state.

The site is generally open for visitors wanting to explore the ruins and the surrounding grounds. A local conservation group organizes guided tours and special events, so checking ahead about current access and timing is recommended.

An Iron Age stone marker stands in the church courtyard, showing that people occupied this location long before the medieval church was built. This ancient stone connects the pre-Christian past with the Christian structures that came later.