Don John Francis Douglas Liyanage, CCS was a former Sri Lankan civil servant. He was the former Secretary to the Ministry of State in the early 1980s. Having gained his BSc from the University of Colombo, Liyanage gained admission and was appointed to the Ceylon Civil Service by the in April 1950. As a cadet he served in the General Treasury, Nuwara Eliya Kachcheri, Mannar Kachcheri and was transferred to the Ministry of Home Affairs and Rural Development. Promoted to Officer Class 2, in August 1952, he was appointed Additional Assistant (Hambanthota) to the Government Agent of the Southern Province.