Dominic Đặng Văn Cầu (Vietnamese: Đa Minh Đặng Văn Cầu) is a Vietnamese prelate.

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.