His excellency Sirisena Amarasekara – Sri Lankan High commissioner to South Africa, Mozambique, Namibia, Zambia, Zimbabwe, Lesotho, Angola, Botswana, and Eswatini.
Dr. Jayantha Dhanapala, SLOS – former Under-Secretary-General for Disarmament Affairs, United Nations[2]
Prof. Sucharitha Gamlath – winner of Rowland's gold medal, Jayanayake Prize and the oriental research scholarship; Trotskyist; professor in Sinhala; Dean of Jaffna University; served in the Rajarata University and Ruhunu University; scholar in linguistics; pioneering Sri Lankan Marxist critic; author of many books
Prof. Leslie Gunatilake – Fellow of the Third World Academy of Sciences and National Academy of Sciences, Sri Lanka, Director, SW Centre for natural products research and commercialisation and Professor of the University of Arizona[23]
Prof. Tissa Jayatilaka – political analyst; director of the Centre for Policy Alternatives-Sri Lanka; director of the Fulbright Commission of Sri Lanka; chairman of the Jury for Presidential Awards for Sri Lankan Sinhala Films; visiting professor of Grinnell College, US[25]
Prof.Saman Warnakulasuriya – OBE- Emeritus Professor King's College London, UK & Director WHO Collaborating Centre on Oral Cancer[26][27]
Professor Lakshman Samaranayake – Dean of the Faculty of Dentistry (2004 -), University of Hong Kong; Tam Wah-Ching Professor in Oral Sciences; King James IV Professor, Royal College of Surgeons of Edinburgh; first Asian to receive the latter honour;[33] first dental surgeon in Sri Lanka to receive DSc (honoris Causa) from the University of Peradeniya
Dr. S. W. R de A Samarasinghe – Director, Tulane Institute for International Development, US; founder-editor of The Kandy News[34]
Prof. Leslie Panditharatne – Vice Chancellor, University of Peradeniya (1978–84); Chairman of the University Grants Commission of Sri Lanka (1993–94); chairman and director general of the National Institute of Business Management (N.I.B.M – 1988); chairman and Director General of the Mineral Sands Corporation (Lanka Mineral Sands in 1989 – 1994); Director of Studies at the American College of Higher Education[43]
Dhamma Jagoda – first Head of the Drama Unit at the National Television channel Rupavahini; pioneer theater and television play director and actor in Sri Lanka
Stanley Kirinde SLAS – one of Sri Lanka's most outstanding artistic talents of the 20th century; former state secretary of the Ministry of Ports and Shipping; painter of the President's House (Kandy and Colombo), the Foreign Ministry, the Military Academy[71][72]
Tilak Samarawickrema – artist, architect and designer[73]
Music
Dr. Tanya Ekanayaka – composer-pianist and first Sri Lankan composer to have entire albums of original music released globally by international record labels[74]
Prof. Warren Ranjithan Breckenridge – professor of zoology; former president of Sri Lanka Institute of Biology[89]
Prof. K. M. de Silva – historian, chairman of the International Centre for Ethnic Studies[90]
Prof. M. W. Sugathapala de Silva – linguist at the Department of Sinhalese, University of Peradeniya until 1964.[91]
Prof. George Dissanaike – former Senior Professor and Head of the Department of Physics, University of Peradeniya; Fellow of the National Academy of Sciences; past President of the Institute of Physics, Sri Lanka[92]
Prof. D. E. Hettiaratchchi – first editor-in-chief, Sinhala encyclopaedia[18]
^Samaranayake, Ajith (2 November 2003). "The Return to Peradeniya". Sunday Observer. The Associated Newspapers of Ceylon Ltd. Archived from the original on 30 September 2007. Retrieved 1 July 2009.
^'DISSANAIKE, Prof. Gishan Romesh', Who's Who 2011, A & C Black, 2011; online edn, Oxford University Press, Dec 2010 ; online edn, Oct 2010 accessed 13 December 2010