Charles Eugene Quinquaud
- Category : 1841-births
- Type : PSP
- Profile : 2/4 - Hermit / Opportunist
- Definition : Triple Split
- Incarnation Cross : RAX Service 4
French internist and dermatologist who in 1888 described folliculitis decalvans, a scalp disease sometimes referred to as "Quinquaud’s disease". His name is also associated with "Quinquaud's sign", a form of finger tremor with a sideways finger movement from the interossei. In 1882, with physiologist Nestor Gréhant, he developed a method for determining blood volume through the use of carbon monoxide.
He studied medicine in Limoges and Paris, receiving his doctorate in 1873. While working as a hospital interne, he was influenced by Pierre-Antoine-Ernest Bazin to study dermatology. In 1878 he became médecin des hôpitaux, obtained his agrégation in 1883, and from 1886 served as chef de service at the Hôpital Saint-Louis in Paris. During his career, he worked closely with dermatologists Ernest Besnier, Jean Alfred Fournier and Émile Vidal. In 1892 he was elected as a member of the Académie de Médecine.
He died on 9 January 1894 in Paris, aged 52.