| Louis Tillaye | |
| Office: | Member of the Senate of the Third French Republic |
| Constituency: | Calvados |
| Term Start: | 1895 |
| Term End: | 1913 |
| Birth Date: | 31 May 1847 |
| Birth Place: | Vimoutiers, France |
| Death Place: | Pau, France |
| Nationality: | French |
Louis Charles Tillaye (31 May 1847 – 7 May 1913) was a French politician of the Third French Republic. He was Minister of Public works (28 June – 17 September 1898) in the government of Henri Brisson.