| Henri Villat | |
| Birth Date: | 24 December 1879 |
| Birth Place: | Paris |
| Nationality: | French |
| Fields: | Mathematics |
| Workplaces: | University of Paris |
| Alma Mater: | University of Montpellier |
| Doctoral Advisor: | Marcel Brillouin Charles Émile Picard |
| Doctoral Students: | Marie-Louise Dubreil-Jacotin Caius Iacob Jean Leray Huguette Delavault |
Henri René Pierre Villat (pronounced as /fr/; 24 December 1879 – 19 March 1972) was a French mathematician. He was professor of fluid mechanics at the University of Paris from 1927 until his death. Villat became a member of the French Academy of Sciences in 1932, and its president in 1948.[1]