| François Merry Delabost | |
| Birth Date: | 29 August 1836 |
| Birth Place: | Saint-Saire, France |
| Death Place: | Rouen, France |
| Nationality: | French |
| Awards: | Legion of Honor |
François Merry Delabost (29 August 1836 – 11 March 1918) was a French physician.
Chief-physician in a French prison in Rouen, he is known to be the inventor of the shower in 1872.