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Susantha De Alwis

d. 2008

Sri Lankan diplomat

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About Susantha De Alwis

Susantha De Alwis was a diplomat.

Susantha De Alwis (died 22 December 2008) was a Sri Lankan diplomat, the former Sri Lankan Ambassador to the United States, Japan, South Korea and former Permanent Representative to United Nations (Geneva).

Educated at the Royal College, Colombo where he won many prizes including the Governor's Scholarship, De Abrew Memorial Scholarship, Principal's Distinctions Prize and the Best Speaker's Prize. He entered the University of Ceylon, Peradeniya, where he was the President of the Law Society and General Secretary, Arunachalam Hall. After graduating with an LL.B. degree, he joined the Ceylon Overseas Service. Later he gained a scholarship to the University of Oxford to read for a BLitt degree in International Laws at Keble College, Oxford. He was a barrister-at-law from Gray's Inn.

During his career in the foreign service De Alwis has served as Assistant High Commissioner for Ceylon in Madras (1962–66); Chargé d'Affaires of the Ceylon's Embassy in Indonesia; First Secretary of Ceylon's embassy in Washington DC (1970–74). In 1974 he was appointed as Sri Lankan Permanent Representative to the United Nations in Geneva, a post he held till 1978. In 1973 he was a signatory of Intelsat. From 1980 to 1983 he served as Sri Lankan Ambassador to Japan and South Korea and Ambassador for Sri Lanka in the United States from 1986 to 1992. In 1987, he was elected chairman of the International Telecommunications Satellite Organization.

His brothers Dunstan De Alwis was a lawyer and President's Counsel and Dr Stanmore De Alwis a Thoracic Surgeon. Of his sisters eldest Sushila De Silva was a teacher at Yashodara Balika, Borella, Dr Thelma Gunawardene was the former Director of the Colombo National Museum and Dr Daisy Jayawickrema former Medical Officer, CPC. He was married to Achala and had two daughters, Chamini, Darshini and a son Ruvan. He died at his home in Bambalapitiya on 22 December 2008.

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Important facts

Occupation
Education
Keble College, Royal College, Colombo

Frequently asked questions

Who was Susantha De Alwis?

Sri Lankan diplomat

When did Susantha De Alwis die?

Susantha De Alwis died on 22 December 2008.

What was Susantha De Alwis's occupation?

Susantha De Alwis was a diplomat.

Sources & further reading

· Wikipedia: Susantha De Alwis

· Wikidata: Q7648816

· DBpedia: Susantha De Alwis

Cite this page

APA: Biography.guide. (2026). Susantha De Alwis. https://biography.guide/susantha-de-alwis/

MLA: "Susantha De Alwis." Biography.guide, https://biography.guide/susantha-de-alwis/.

Chicago: "Susantha De Alwis." Biography.guide. https://biography.guide/susantha-de-alwis/.

Data last updated: 2026-09-26 · Spot an error? Report a correction.

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