Kollam Lok Sabha constituency (Malayalam: കൊല്ലം ലോക്‌സഭാ നിയോജകമണ്ഡലം) formerly Quilon Lok Sabha constituency is one of the 20 Lok Sabha constituencies in Kerala state in southern India.

Kollam Lok Sabha constituency is composed of the following assembly segments: As Quilon Cum Mavelikkara in Travancore-Cochin As Quilon/Kollam According to Election Commission, there are 12,59,400(Women-6,59,597, Men-5,99,797, Transgender people-6) registered voters in Kollam Constituency for 2019 Lok Sabha Election.

Kollam Constituency was polled 74.36% of total electorate.

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