| Honorific-Prefix: | Hon. |
| Susil Premajayantha | |
| Native Name: | Susil Premajayantha சுசில் பிரேமஜயந்த |
| Office: | Leader of the House |
| President: | Ranil Wickremesinghe |
| Primeminister: | Dinesh Gunawardena |
| Term Start: | 27 July 2022 |
| Term End: | 24 September 2024 |
| Predecessor: | Dinesh Gunawardena |
| Successor: | Bimal Rathnayake |
| Office1: | Minister of Education |
| President1: | Gotabaya Rajapaksa Ranil Wickramasinghe |
| Primeminister1: | Ranil Wickramasinghe Dinesh Gunawardena |
| Term End1: | 23 September 2024 |
| Predecessor1: | Ramesh Pathirana |
| Successor1: | Harini Amarasuriya |
| President2: | Mahinda Rajapaksa |
| Primeminister2: | Ratnasiri Wickremanayake |
| Successor2: | Bandula Gunawardane |
| President3: | Chandrika Kumaratunga |
| Primeminister3: | Ratnasiri Wickremanayake |
| Term Start3: | 2000 |
| Term End3: | 2001 |
| Predecessor3: | Richard Pathirana |
| Successor3: | Sarath Amunugama |
| Office4: | Minister of Technology and Research |
| President4: | Maithripala Sirisena |
| Primeminister4: | Ranil Wickremesinghe |
| Term Start4: | 4 September 2015 |
| Term End4: | 12 April 2018 |
| Predecessor4: | Champika Ranawaka |
| Successor4: | Gotabaya Rajapaksa |
| Office5: | Minister of Environment and Renewable Energy |
| President5: | Mahinda Rajapaksa |
| Primeminister5: | D. M. Jayaratne |
| Successor5: | Maithripala Sirisena |
| Office6: | Minister of Petroleum Industries |
| President6: | Mahinda Rajapaksa |
| Primeminister6: | D. M. Jayaratne |
| Successor6: | Anura Priyadharshana Yapa |
| Office7: | Minister of Power and Energy |
| President7: | Chandrika Kumaratunga |
| Primeminister7: | Mahinda Rajapaksa |
| Predecessor7: | Karu Jayasuriya |
| Successor7: | John Seneviratne |
| Office8: | General Secretary of the United People's Freedom Alliance |
| Leader8: | Maithripala Sirisena Mahinda Rajapaksa Chandrika Kumaratunga |
| Term Start8: | 20 January 2004 |
| Term End8: | 14 August 2015 |
| Predecessor8: | Office Created |
| Successor8: | Wiswa Warnapala |
| Constituency Mp9: | Colombo District |
| Parliament9: | Sri Lankan |
| Term Start9: | 2001 |
| Term End9: | 2024 |
| Constituency Mp10: | Gampaha District |
| Parliament10: | Sri Lankan |
| Term Start10: | 2000 |
| Term End10: | 2001 |
| Birth Date: | 10 January 1955 |
| Birth Place: | Dominion of Ceylon |
| Nationality: | Sri Lankan |
| Party: | Sri Lanka Podujana Peramuna (2018 - Present) Sri Lanka Freedom Party (Until 2018) |
| Otherparty: | Sri Lanka People's Freedom Alliance (2020–present) United People's Freedom Alliance (2004–2018) People's Alliance (until 2004) |
| Alma Mater: | St. John's College, Nugegoda |
Achchige Don Susil Premajayantha (born 10 January 1955) is a Sri Lankan politician, former cabinet minister and a member of the Parliament of Sri Lanka.[1]
Premajayantha received his primary and secondary education at St. John's College, Nugegoda. After that he attended the University of Colombo and received a Bachelor of Laws in 1982 and became an Attorney at Law in 1984. Later on in 2004 he also gained a Masters in Public Administration from the University of Sri Jayewardenepura.[2]
Premajayantha began his political career in 1991 being elected as the Deputy Chairman of Sri Jayewardenepura Kotte Urban Council. In 1993 he was elected to the Western Provincial Council and was elected Chief Minister in 1995.[2]
In 2000 he entered parliament for the first time from Gampaha District and became the Minister of Education. Even though the People's Alliance was defeated in the 2001 general elections, Premajayantha was elected back into the Parliament from Colombo District and held his seat in subsequent elections.
With the formation of the United People's Freedom Alliance in 2004, Premajayantha was made its inaugural General Secretary of the party. When the United People's Freedom Alliance won the 2004 general elections he was given the post of Minister of Power and Energy[3] When Mahinda Rajapaksa became president, he was again appointed Minister of Education[4] and after the 2010 general elections as the Minister of Petroleum Industries[5] and in a 2013 cabinet reshuffle he became the Minister of Environment and Renewable Energy.[6]
On 25 August 2015, few days after general elections he resigned as the General Secretary of the United People's Freedom Alliance. Few days prior to the elections he was removed from the position by the party Chairman, President Maithripala Sirisena.[7] After the Sri Lanka Freedom Party and United National Party signed a Memorandum of Understanding to form a National unity government,[8] Premajayantha became the Minister of Technology and Research[9] [10] [11] He was reappointed as the Minister of Education on 20 May 2022 by President Gotabaya Rajapaksa and again by President Ranil Wickramasinghe on 23 July 2022.