Stephen Tong Tjong Eng (Chinese: 唐崇榮; pinyin: Táng Chóngróng; Jyutping: tong4 sung4 wing4, born 1940) is a Chinese Indonesian Reformed pastor, evangelist, teacher and musician. He heads the Reformed Evangelical Church of Indonesia, which houses the megachurch Messiah Cathedral, and is the largest Christian Church building in Southeast Asia. He has preached in countries around the world, and guest lectured at theological seminaries and schools.