Kottawa electoral district was an electoral district of Sri Lanka between March 1960 and July 1977. The district was named after the town of Kottawa in Colombo District, Western Province. The 1978 Constitution of Sri Lanka introduced the proportional representation electoral system for electing members of Parliament. The existing 160 mainly single-member electoral districts were replaced with 22 multi-member electoral districts.[1] Kottawa electoral district was replaced by the Colombo multi-member electoral district at the 1989 general elections.