John Wilhelmus Lucius Attygalle (1906–1981) was the 16th Inspector General of the Sri Lanka Police (IGP) (1966–1967).
[2] In January 1962 Attygalle, who was then the Superintendent of Police of the Criminal Investigation Department (CID), played a major role in stopping the attempted military coup.
In July 1966 he arrested Major General Richard Udugama, the Commander of the Ceylon Army, at the Bandaranaike International Airport for his purported involvement in an alleged coup d'état attempt.
[7] On 1 April 1967, Attygalle arranged for the Police Training School to be shifted from Kalutara to Echen Square Barracks, which were occupied by the Sinha Regiment of the Ceylon Army.
[1][9] In 1969 Attygalle, who had been appointed as a special security advisor to the Ministry of External Affairs and Defence in July 1967,[1][10] prepared a report on the potential threat of the communist Janatha Vimukthi Peramuna (JVP) which was presented to the Prime Minister, Dudley Senanayake, for consideration.