| Country: | Second French Empire |
| Type: | Parliamentary |
| Previous Election: | 1852 French legislative election |
| Previous Year: | 1852 |
| Next Election: | 1863 French legislative election |
| Next Year: | 1863 |
| Election Date: | 28 February 1857 (first round) 5 March 1857 (second round) |
| Image1: | Atelier Nadar - Morny.jpg |
| Leader1: | Charles de Morny |
| Party1: | Bonapartists (political party) |
| Seats1: | 276 |
| Popular Vote1: | 5,471,000 |
| Percentage1: | 89.16% |
| Leader2: | Michel Goudchaux |
| Party2: | Republicans |
| Seats2: | 7 |
| Popular Vote2: | 665,000 |
| Percentage2: | 10.84% |
| Prime Minister | |
| Posttitle: | Subsequent Prime Minister |
| Before Election: | Jules Baroche |
| After Election: | Jules Baroche |
| Before Party: | Bonapartist |
| After Party: | Bonapartist |
Parliamentary elections were held in France on 28 February 1857, with a second round on 5 March.[1] According to the constitution of the empire, partisans of the regime ran as "official candidates" of the regime in often gerrymandered circonscriptions. As official candidates, their campaign expenditures were paid by the government and their campaigns led by the local government.