Julien Barbier was a French architect who specialized in religious architecture.

Notable works include:

• Sacré-Cœur Church, Dijon,

• Saint-Maurice de Bécon-les-Bruyères Church, Courbevoie (1907),^[1]

• Saint-Rémi de Limé Church, Aisne (1929) (made a monument historique^[2]).

• Sainte-Germaine Parish Church, Cachan (1932),

• Chapel of the Grand Saint-Mars Château, Chalo-Saint-Mars (1898), with Eugène Méhu (made a monument historique^[3]).

• War Memorial, La Garenne-Colombes (1913),
• The Lamartine School Complex, Gentilly (1922), with Georges Morice,
• The Notre-Dame-des-Otages Church, Paris,

• The Sainte-Jeanne-de-Chantal Church, Paris.