Charles Lucien de Beurmann (6 December 1851 – 1923) was a French dermatologist and mycologist.
He studied medicine in Paris, where in 1884 he became médecin des hôpitaux (hospital physician).
Beurmann is known for his contributions in the study of sporotrichosis, a disease that was fairly common in Europe at the time.
In 1903 dermatologist Raymond Sabouraud (1864-1938) suggested to Beurmann, the use of potassium iodide as a remedy.
Because of Beurmann's thorough research of sporotrichosis, Sporothrix schenckii was sometimes referred to as Sporotrichum beurmanni.