Junius Richard Jayewardene (,; 17 September 1906 – 1 November 1996), famously abbreviated in
Sri Lanka as
JR, was the leader of
Sri Lanka from 1977 to 1989, serving as
Prime Minister from 1977 to 1978 and as the second
President of Sri Lanka from 1978 till 1989. He was a leader of the nationalist movement in Ceylon (now Sri Lanka) who served in a variety of cabinet positions in the decades following independence. A longtime member of the
United National Party, he led it to a crushing victory in 1977 and served as Prime Minister for half a year before becoming the country's first executive president under an amended constitution.