Alluaud (4 May 1861, Limoges – 12 December 1949, Crozant) was a French entomologist.
The Alluaud family had owned porcelain factories since the 18th century.
His great grandfather had been chairman of the Ancienne Manufacture Royale de Limoges and his grandfather, François Alluaud (1778–1866), was a porcelain manufacturer, archaeologist, and geologist.
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.
The death of his parents enabled him to become an explorer.
From 1887 to 1930, he went on many journeys in Africa (Ivory Coast, Madagascar, Kilimanjaro, Tunisia, Morocco, Sudan, the Sahara, Niger), the Canary Islands, Seychelles and Mascarene Islands.