Back Lanka Sama Samaja Party Catalan Lanka Sama Samaja Party French Partito dell'Eguaglianza Sociale Singalese Italian スリランカ社会主義平等党 Japanese Lanka Sama Samaja Party NB Ланка Сама Самаджа Парти Russian ලංකා සමසමාජ පක්ෂය Singhalese Lanka Sama Samaja Party SIMPLE Lanka Sama Samaja Party Swedish லங்கா சமசமாஜக் கட்சி Tamil

Lanka Sama Samaja Party

For a list of breakaway parties from the LSSP, see List of Lanka Sama Samaja breakaway parties.
Lanka Sama Samaja Party
ලංකා සම සමාජ පක්ෂය
லங்கா சமசமாஜக் கட்சி
Lanka Equal Society Party
AbbreviationLSSP
Secretary-GeneralLeslie Goonewardene (first; 1945–1977)
LeaderN.M. Perera (first; 1947–1959)
Tissa Vitharana (current)
FoundersLeslie Goonewardene
N.M. Perera
Colvin R. de Silva
Philip Gunawardena
Robert Gunawardena
Founded18 December 1935 (1935-12-18)
Headquarters457 Union Place, Colombo 02
NewspaperSamasamajaya
Janadina daily
Janasathiya
Youth wingCongress of Samasamaja Youth Leagues
IdeologyCommunism
Trotskyism
Political positionFar-left
National affiliationULS
PA
Formerly:
FPA
SLPFA
UPFA
United Front
International affiliationFourth International
Parliament of Sri Lanka
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Election symbol
Key
Website
lssplk.com

The Lanka Sama Samaja Party, often abbreviated as LSSP (literally: Lanka Equal Society Party, Sinhala: ලංකා සම සමාජ පක්ෂය, Tamil: லங்கா சமசமாஜக் கட்சி), is a major Trotskyist political party in Sri Lanka. It was the first political party in Sri Lanka (then British Ceylon), having been founded in 1935 by Leslie Goonewardene, N.M. Perera, Colvin R. de Silva, Philip Gunawardena and Robert Gunawardena. It currently is a member of the main ruling coalition in the government of Sri Lanka and is headed by Tissa Vitharana. The party was founded with Leninist ideals, and is classified as a party with socialist aims.

The LSSP emerged as a major political force in the Sri Lankan independence movement during the 1940s, during which time the party was forced to go underground due to its opposition to the British war effort. The party played an instrumental role in the Indian independence and later Quit India Movement through the Bolshevik–Leninist Party of India, Ceylon and Burma (BLPI). Through its efforts, India gained Independence from Britain in 1947, followed by Sri Lanka in 1948.

In the late early 1950s, the LSSP took the lead in organising the Hartal strike, caused by vast food price inflation by the UNP government. At the time, J.R. Jayawardena was the finance minister of the country. Maintaining the price of rice at 25 cents had been an electoral promise given by UNP in the 1952 elections, and when the new rates of 70 cents were introduced to the public there was a massive anger against it.

From the late 1940s to 1960s, the Lanka Sama Samaja Party served as the opposition Party in Sri Lanka, whilst being recognised as the Sri Lankan wing of the Fourth International, an organisation characterised by Trotskyism. During this period, the party was able to use its considerable political influence to reform the former British Colony of Ceylon into a socialist republic by nationalising organisations in the banking, education, industry, media and trade sectors. In 1964, the party joined the United Front (Sri Lanka), and formed the Socialist SLFP government, leading to its expulsion from the Fourth International. Through their election landslide in 1964, they brought the world's first non-hereditary female head of government in modern history, Sirimavo Bandaranaike to power as Prime Minister of Sri Lanka. The party peaked in political strength in the 1970s, when it was again leading a coalition government with multiple of its leaders in key cabinet roles.

In recent elections, the party has served a role in the coalition government. As of 2020, the party holds local government roles, as well as the governorship of the North Central Province.

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