Mariampillai Thaddeus Sarathjeevan (May 13, 1968 - May 18, 2009) was a Catholic priest from Jaffna, Sri Lanka. He was one of the few priests who remained with the refugees until the end of war in northern parts of Sri Lanka. He died while he was leading the last batch of refugees to safety from war zone. He was 41 years old and in good health. Unconfirmed reports indicate that he was assaulted by soldiers.