| Type: | Bishop |
| Honorific-Prefix: | His Excellency, The Most Reverend |
| Dominic Đặng Văn Cầu | |
| Native Name: | Đa Minh Đặng Văn Cầu |
| Native Name Lang: | vi |
| Bishop of Thái Bình | |
| Province: | Hà Nội |
| See: | Thái Bình |
| Appointed: | 29 October 2022 |
| Term Start: | 31 December 2022 |
| Ordination: | 9 March 1996 |
| Ordained By: | François-Xavier Nguyễn Văn Sang |
| Consecration: | 31 December 2022 |
| Consecrated By: | Pierre Nguyễn Văn Đệ, Joseph Nguyễn Tấn Tước, and Joseph Trần Văn Toản |
| Birth Date: | 17 July 1962 |
| Birth Place: | Thái Bình, Việt Nam |
| Nationality: | Vietnamese |
| Previous Post: | Rector of the Sacred Heart Major Seminary of Thái Bình (2017-2022) |
| Alma Mater: | Institut Catholique de Paris |
| Motto: | Ecce venio (Behold I come) (Này con xin đến) |
| Coat Of Arms: | Huy hiệu Giám mục Đức cha Đaminh Đặng Văn Cầu.png |
Dominic Đặng Văn Cầu (Vietnamese: Đa Minh Đặng Văn Cầu) is a Vietnamese prelate. He was appointed Bishop of Thái Bình on 29 of October 2022. Cầu was set to be appointed bishop with Joseph Bùi Công Trác on the same day, but Trác was appointed later on 1 November due to Archbishop Joseph Nguyễn Năng being on a retreat.[1] He was ordained to the priesthood in 1996 and previously served as Rector of the Sacred Heart Major Seminary of Thái Bình since 2017.[2] He was ordained bishop on 31 December 2022 in front of the Diocesan Pastoral Center (adjacent to the cathedral) and consecrated by Archbishop Joseph Nguyễn Năng. His co-consecrators were Joseph Nguyễn Tấn Tước, Bishop of Phú Cường and Joseph Trần Văn Toản, Bishop of Long Xuyên.[3]