1977 Sri Lankan parliamentary election

1977 Sri Lankan parliamentary election

← 1970 21 July 1977 1989 →
elected members →
All 168 seats in the National State Assembly 85 seats were needed for a majority
First party Second party Third party   Leader Junius Richard Jayewardene A. Amirthalingam Sirimavo Bandaranaike Party UNP TULF SLFP Leader since 1973 1977 1960 Leader's seat Colombo West Kankesanthurai Attanagalla Last election 37.91%, 17 seats – 36.86%, 91 seats Seats won 140 18 8 Seat change 123 New 83 Popular vote 3,179,221 421,488 1,855,331 Percentage 50.92% 6.75% 29.72%
Winners of polling divisions. UNP in green, TULF in yellow and SLFP in blue.
Prime Minister before election Sirimavo Bandaranaike SLFP Prime Minister-designate Junius Richard Jayewardene UNP

Parliamentary elections were held in Sri Lanka on 21 July 1977. The result was a landslide victory for the United National Party, which won 140 of the 168 seats in the National State Assembly.