Medirigiriya electoral district was an electoral district of Sri Lanka between July 1977 and February 1989.
The district was named after the town of Medirigiriya in Polonnaruwa District, North Central Province.
The 1978 Constitution of Sri Lanka introduced the proportional representation electoral system for electing members of Parliament.
[1] Medirigiriya electoral district was replaced by the multi-member electoral district at the 1989 general elections, the first under the proportional representation system.
Key Independent SLFP UNP Results of the 8th parliamentary election held on 21 July 1977:[2]