| Country: | French Third Republic |
| Type: | parliamentary |
| Previous Election: | 1876 French legislative election |
| Previous Year: | 1876 |
| Election Date: | 14–28 October 1877 |
| Next Election: | 1881 French legislative election |
| Next Year: | 1881 |
| Seats For Election: | All 521 seats in the Chamber of Deputies |
| Majority Seats: | 261 |
| Image1: | Jules Armand Dufaure.jpg |
| Leader1: | Jules Dufaure |
| Party1: | Republican Union |
| Seats1: | 313 |
| Leader2: | Georges-Eugène Haussmann |
| Party2: | Bonapartists (political party) |
| Seats2: | 104 |
| Image4: | Broglie Albert.JPG |
| Leader4: | Albert de Broglie |
| Party4: | Legitimists |
| Seats4: | 44 |
| Party5: | Orléanist |
| Seats5: | 11 |
| Prime Minister | |
| Before Election: | Gaëtan de Rochebouët |
| Before Party: | Independent politician |
| After Election: | Jules Dufaure |
| After Party: | Republican Left |
Legislative elections were held in France on 14 and 28 October 1877 to elect members of the Chamber of Deputies. They were held during the Seize Mai crisis.
President Patrice de MacMahon dissolved the Chamber of Deputies elected in 1876, in the hope of a conservative and royalist victory. Although royalists lost seats, Bonapartists increased their seat total over 1876; the Republicans lost 80 seats, but retained a majority.
The elections proved a serious setback for those hoping for a restoration of the monarchy, such as MacMahon. In the Senate elections of January 1879, the monarchists also lost control of the Senate. MacMahon resigned, and the Republican Jules Grévy was elected president by the National Assembly.[1]
Along with the 1997 election, it is a rare case of an election in which the sitting President's party lost a general election which he had called.