| Robert de Lasteyrie | |
| Birth Name: | Robert, Charles de Lasteyrie du Saillant |
| Birth Date: | 15 November 1849 |
| Birth Place: | Paris, France |
| Death Place: | Allassac, Corrèze, France |
| Education: | Collège Rollin |
| Alma Mater: | École Nationale des Chartes |
| Occupation: | Archivist, art historian, archeologist, politician |
| Children: | Charles de Lasteyrie |
| Parents: | Ferdinand de Lasteyrie |
| Relatives: | Charles Philibert de Lasteyrie (paternal grandfather) |
Robert de Lasteyrie (15 November 1849 – 29 January 1921) was a French archivist, art historian, archeologist and politician. He served as a member of the Chamber of Deputies from 1893 to 1898, representing Corrèze.[1]