Major General Jayantha de S. Jayaratne, VSV, ndc, IG, SLA was a Sri Lankan general, who was the former Commander Security Forces Headquarters - Jaffna (SF HQ (J)).
Educated at Royal College, Colombo, he joined the army after graduating from the Royal Military Academy at Sandhurst. He was commissioned into the Ceylon Artillery as a Second Lieutenant.
Major General Jayaratne was a graduate of the National Defence College, India and was the Inspector General of the Sri Lanka Artillery. He was awarded the Vishista Seva Vibhushanaya (VSV) in 1987.