Église du Sacré-Cœur de Lyon, Church building in 3rd arrondissement of Lyon, France.

Église du Sacré-Cœur is an unfinished Romanesque-Byzantine church at the corner of rue Turbil and rue Antoine-Charial in Lyon's 3rd arrondissement. Its pale gray stone facade has a large rose window with geometric tracery above smaller arched windows, a decorated gable with a finial, and a slender corner spire. Inside, clustered stone columns line a hall with a beige, brown and gray mosaic floor, wooden chairs facing a white altar table with a dark cross, and a tall arched apse with two vertical windows.

The church stems from a 1916 vow by the Association of War Widows to build a votive church if France won the Great War. The first stone was laid in 1922, but money ran short and reconstituted white stone from Boschetto of Aix-les-Bains replaced cut stone. The transept was blessed on 6 June 1934 and work then stopped for good; in 1969 two-thirds of the plot became a public garden.

The parish was created in 1859 by Cardinal de Bonald; the present church grew from a 1916 vow by the Association of War Widows to build a votive church if France won the war. The small chapel behind the main nave now hosts baptisms, confirmations and ordinary masses, since the large hall is too big for current attendance.

The church stands at the corner of rue Turbil and rue Antoine-Charial in La Villette, east of Lyon-Part-Dieu station. Only the transept was built, so the entrance faces the garden that now occupies the plot where the nave was planned. The 1934 shell seats 140 people, and smaller ceremonies are held in the side chapel.

The church was meant to be Lyon's second-largest after Saint-Jean cathedral: 94 metres long, three naves, a 45-metre transept and a 63-metre dome outside. Only the transept was built, blessed on 6 June 1934, and in 1969 two-thirds of the plot became a public garden.