Bishop Rayappu Joseph (; 16 April 1940 â 1 April 2021) was a Sri Lanka Tamil prelate and the Roman Catholic Bishop of Mannar.
Joseph was born on 16 April 1940 on the island of Neduntheevu in northern Ceylon to a practitioner of indigenous medicine. Living in Cheddikulam and Mannar during his early childhood, he was educated at St. Patrick's College, Jaffna. Joseph had a Doctor of Canon Law degree from the Pontifical Urbaniana University.
Joseph was ordained a priest in December 1967. He was a professor at the St Xavier's Seminary, Jaffna. In July 1992 he was appointed Bishop of Mannar and was ordained a bishop in October 1992.
Joseph has been a vocal critic of the Sri Lankan government/Sri Lankan military's conduct during the Sri Lankan Civil War and the country's human rights record. This has led to him being threatened by government supporters.