The art and decoration in the church is not lavish; the agreement for French-government financing of the cathedral by Napoleon III put a limit on spending for art. Despite this, the church exterior and interior contain a variety of sculptures and paintings, as well as stained glass. The facade is decorated with two large statues; "The Prophet Jeremiah" by F. Taluet and "The Prophet Ezekiel" by J. Cambos.
Stained glass The stained glass in the church was made between 1866 and 1869 by the workshop of Charles-Raphael Marechal. The transept, where the nave meets the choir, is decorated with stained glass windows, as are the chapels. Many of the windows are simply decorated with geometric designs, bringing in more light, File:Messe à la chapelle de la Sainte-Vierge.jpg|The Chapel of the Holy Virgin File:Eglise St-Ambroise - vitrail - Joseph charpentier.JPG|"Joseph the Carpenter" File:Eglise St-Ambroise - vitrail - La fuite en Egypte.JPG|"The Flight into Egypt" File:Élisabeth de Hongrie Curé d'Ars.jpg|Window of Saint Elizabeth of Hungary and statue of
Saint Curé of Ars. File:P1300984 Paris XI eglise St-Ambroise chapelle rwk1.jpg|Chapel of Saint Denis, with his portrait in glass
Paintings within the porch Over the portals within the porch are three paintings made with
Vitreous Enamel, a technique popular in Romanesque art. File:P1300981 Paris XI eglise St-Ambroise entree tympan 1 rwk.jpg|
Vitreous enamel Painting of "Eloquence" over portal File:P1300982 Paris XI eglise St-Ambroise entree tympan 2 rwk.jpg|Vitreous enamel painting of Saint Ambroise. File:P1300983 Paris XI eglise St-Ambroise entree tympan 3 rwk.jpg|Vitreous enamel Painting of "Theology"
Murals In the chapel of Saint-Augustine in the transept displays four murals depicting scenes from he life of
Saint Augustine painted by
Jules-Eugène Lenepveu. His paintings are found. in several of the churches built by Emperor Louis-Napoleon. In the left chapel of the transept one mural depicts Saint Augustine reconciling the Catholics and the
Donatists at the Council of Carthage. The second shows Saint Augustine stopping the practice of having parents fight as practice for war. In the right chapel of the transept are two other paintings of Lenepveu; "Saint Augustine bearing entry to the church in Milan to the
Emperor Theodosius"; and "Saint Ambroise turns over sacred vases to purchase the freedom of prisoners." File:Saint Augustin au concile de Carthage - Tableau de Lenepveu - Eglise Saint-Ambroise Paris.jpg|"
Saint Augustine reconciles Catholics and Donatists" by
Jules-Eugène Lenepveu File:Saint Ambroise interdisant l'entrée de l'Eglise à l'empereur Theodose- Eglise St Ambroise - Tableau de Lenepveu.jpg|"Saint Augustine bars entry to the church of Milan to the
Emperor Theodosius "by
Jules-Eugène Lenepveu File:Saint Ambroise livrant les vases sacrés de son église pour le rachat des prisonniers - Eglise saint-Ambroise- Paris- Tableau de Jules Lenepveu.jpg|"Saint Augustin gives sacred vases from his church to purchase freedom for prisoners" by
Jules-Eugène Lenepveu(Lenepveu) File:Saint Augustin faisant cesser l'usage de se battre entre parents pour s'exercer - Eglise Saint-Ambroise - Peintre Jules Lenepveu.jpg|"Saint Augustine stops children from practicing for war", by
Jules-Eugène Lenepveu The chapel of Saint-Augustine in the transept displays four murals depicting scenes from he life of
Saint Augustine painted by
Jules-Eugène Lenepveu. His paintings are found. in several of the churches built by Emperor Louis-Napoleon. In the left chapel of the transept one mural depicts Saint Augustine reconciling the Catholics and the
Donatists at the Council of Carthage. The second shows Saint Augustine stopping the practice of having parents fight as practice for war. In the right chapel of the transept are two other paintings of Lenepveu; "Saint Augustine bearing entry to the church in Milan to the
Emperor Theodosius"; and "Saint Ambroise turns over sacred vases to purchase the freedom of prisoners." == Decorative Works ==