General Deshamanya Don Sepala Attygalle, LVO (14 October 1921 – 15 January 2001) was a Sri Lankan army officer, civil servant and diplomat.

He is most notable for successfully crushing the 1971 Insurrection in a matter of months and becoming the first Sri Lankan army officer to be promoted to the rank of full general.

On 27 July 1950 he was appointed as an Extra Aide-de-camp (ADC) to Lord Soulbury, the Governor General of Ceylon, succeeding Major Bevis Bawa.

Thereafter he was attached to the 1st Battalion, King's Own Yorkshire Light Infantry, in Germany; serving with the NATO Forces in Europe.

On his return to he took part in the formation of the "D" Company, 1st Battalion, Ceylon Light Infantry of which was appointed officer commanding.

On 17 December 1955 a Combined Services Buddhist Mission led by Major Attygalle left for Burma on board HMCyS Vijaya, to represent the Armed Forces of Ceylon at the Buddha Jayanthi commemoration celebrations, and present a gift of a Bodhi tree sapling.

He relinquished command of the Task Force Anti Illicit Immigration on 30 June 1965 and in 1966 he attended the Imperial Defence College.

[4] He relinquished Chief of Staff duties and was promoted to the rank of Brigadier on 22 September 1967 and appointed as Acting Commander of the Army after the retirement of Major General B.R.

[4] Following his tenure as Secretary of Defence, he was appointed as High Commissioner for Sri Lanka in the United Kingdom in March 1990 and served till August 1993 when he was succeeded by General Cyril Ranatunga.

He was made a Member of the Royal Victorian Order (Military Division) (MVO) by Queen Elizabeth II during her Majesty's visit to Ceylon in 1954, which was later upgraded to Lieutenant (LVO) in 1984.