Sinyo Harry Sarundajang (born 16 January 1945) is an Indonesian politician and former governor of North Sulawesi.
He was also a former Governor of North Maluku in 2002 and Maluku in 2002-2003.
In February 2018, he was appointed by the president Joko Widodo as the Indonesia Ambassador to the Philippines, with concurrent accreditation to the Marshall Islands and Palau.