Ruban Canistus Jayalath Jayawardena MP (born 16 August 1953 – died 30 May 2013: Sinhala: ජයලත් ජයවර්ධන), commonly as Jayalath Jayawardena, was a medical doctor who was elected to the Parliament of Sri Lanka for the opposition United National Party (UNP) in 1994. Jayawardena was known as a human rights activist. Jayawardena is also popular for his sheer commitment and loyalty for the UNP.