Constance-Caroline Lefebvre, sometimes spelled Lefèvre, (born 21 December 1828 in Paris, France; died 1905) was a French opera singer described as a mezzo-soprano and as a soprano.
She started her career in 1849 and performed until her retirement in 1866, mostly playing "dugazon" roles.
She married her stage partner, famous baritone and composer Jean-Baptiste Faure, in 1859.