Lanka Prajathanthravadi Pakshaya

Lanka Prajathanthravadi Pakshaya (Ceylon Democratic Party) was a political party in Sri Lanka. LPP was led by Dr. W. Dahanayake. In the 1960 elections LPP was part of the 'Mahajana Eksath Peramuna' coalition, consisting of the Sri Lanka Freedom Party, Viplavakari Lanka Sama Samaja Party, Jathika Vimukthi Peramuna and LPP.

Ahead of the 1965 elections the link between LPP and SLFP had been broken. LPP won one seat. After the elections LPP gave their support to the United National Party government. Soon thereafter it merged into the Sri Lanka Freedom Socialist Party, which merged into UNP.

Political parties in Sri Lanka
Major parties	UNFGG/UNF United National Party All Ceylon Makkal Congress Jathika Hela Urumaya Sri Lanka Muslim Congress Tamil Progressive Alliance Democratic People's Front National Union of Workers Up-Country People's Front UPFA Sri Lanka Freedom Party Ceylon Workers' Congress Jathika Nidahas Peramuna Liberal Party Mahajana Eksath Peramuna National Congress Socialist Alliance Communist Party of Sri Lanka Democratic Left Front Desha Vimukthi Janatha Pakshaya Lanka Sama Samaja Party Sri Lanka Mahajana Pakshaya Tamil Makkal Viduthalai Pulikal
Third parties	Larger TNA Illankai Tamil Arasu Kachchi Eelam People's Revolutionary Liberation Front People's Liberation Organisation of Tamil Eelam (Democratic People's Liberation Front) Tamil Eelam Liberation Organization Smaller Janatha Vimukthi Peramuna Democratic Tamil National Front Democratic People’s Congress Eelam People's Democratic Party Eelam Revolutionary Organisation of Students (Eelavar Democratic Front) Tamil Eelam Liberation Organization (Sri wing) Tamil United Liberation Front
Others outside parliament	Bahujana Nidahas Peramuna Bodu Jana Peramuna Ceylon Communist Party (Maoist) Ceylon Democratic Unity Alliance Crusaders for Democracy Democratic Party Democratic United National Front Eelam National Democratic Liberation Front Eelam People's Revolutionary Liberation Front (Padmanaba) Left Liberation Front Lanka Sama Samaja Party (Alternative Group) National Democratic Movement Nava Sama Samaja Party New Democratic Party Janatha Sevaka Pakshaya New Democratic Front New Sinhala Heritage People's Tamil Congress Revolutionary Workers Party Sinhalaye Mahasammatha Bhoomiputra Pakshaya Socialist Equality Party Socialist Party Sri Lanka Labour Party Tamil National People's Front All Ceylon Tamil Congress United Citizen’s Front United Socialist Party
Former political parties	All Ceylon Islamic United Front All Ceylon Malay Political Union Aziz Democratic Workers Congress Bolshevik Samasamaja Party Buddhist Republican Party Ceylon National Congress Lanka Democratic Party Lanka Mahajana Sabha Lanka Sama Samaja Party (Revolutionary) People's Front of Liberation Tigers Sinhala Maha Sabha Sri Lanka Freedom Socialist Party Sri Lanka Sama Samaja Party United Lanka Congress Viplavakari Lanka Sama Samaja Party
Former political alliances	Democratic National Alliance Mahajana Eksath Peramuna People's Alliance National Unity Alliance Tamil National Liberation Alliance
Portal:Politics List of political parties Politics of Sri Lanka