| François Xavier Nguyễn Quang Sách | |
| Birth Date: | 25 May 1925 |
| Nationality: | Vietnamese |
| Occupation: | Roman catholic bishop |
François Xavier Nguyễn Quang Sách (25 May 1925 - 7 July 2013) was a Vietnamese Catholic bishop.
Ordained to the priesthood in 1956, he was named bishop in 1976 and became bishop of the Da Nang Diocese in 1988. He retired in 2002.[1]