The 1877 general election to the Chamber of Deputies of the Third Republic was held on 14 and 28 October 1877, 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 the monarchists lost the election, they increased their seat total over 1876; the Republicans lost 80 seats, but retained a majority. 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.