Eduardus Sangsun (June 14, 1943 – October 13, 2008) was the Indonesian third bishop of the Roman Catholic Diocese of Ruteng from 1984 until his death in 2008.

Sangsun was born in Karot, Manggarai district, Flores, in the present-day nation of Indonesia on June 14, 1943.

Sangsun learned he had heart disease in April 2008 when he travelled to Singapore for a medical checkup.

[1] He flew to Rome and the Vatican in September 2008 to take part in the vow-taking ceremony of Dominican nuns.

[1] He died at the Pantai Indah Kapuk Hospital in North Jakarta of a heart attack on October 13, 2008, at the age of 65.