Jean Baptiste Bùi Tuần was born on 24 June 1928[1] in the commune of Cam Lai, now Đông Cơ, Tiền Hải District, Thai Binh Province, Vietnam, to poor but devout peasant parents.

[2][3] Bishop Jean-Baptiste Bùi Tuần died in Long Xuyên, Vietnam on 27 July 2024, at the age of 96.

In the following years, he dedicated his pastoral service to caring for refugees amidst the backdrop of the civil war.

On 15 April 1975, Pope Paul VI appointed him as the coadjutor bishop of the Roman Catholic Diocese of Long Xuyên.

[5] He succeeded to the same position on 30 December 1997, and remained in office for almost six years until his retirement due to age limits on 2 October 2003.