Charles A. Alluaud (4 May 1861, Limoges – 12 December 1949, Crozant) was a French entomologist.
Jean-Baptiste-Camille Corot (1796–1875) taught painting to Charles and his brother Eugene.
Charles left Limoges for Paris to supplement his studies but was an undisciplined pupil.
He assembled important collections of insects during his voyages, later giving these to the entomology department of the Muséum national d'histoire naturelle.
[citation needed] Emmanuel Drake del Castillo (1855–1904) dedicated the plant genus Alluaudia to him.