21 December (Roman Martyrology) Andrew Trần Dũng-Lạc (Vietnamese: Anrê Trần An Dũng Lạc, Vietnamese pronunciation: [aːn˧re˧ tɕən˨˩ aːn˧ zuŋ˧˥ lak˧˨]), French: André Dũng-Lạc; c. 1795 – 21 December 1839) was a Vietnamese Roman Catholic priest.

He was executed by beheading during the reign of Minh Mạng.

He was born Trần An Dũng in Vietnam in 1795.

He took the name Andrew at his baptism (Anrê Dũng) and was ordained a priest on 15 March 1823.

[2] During persecution, Andrew Dũng changed his name to Lạc to avoid capture, and thus he is memorialised as Andrew Dũng-Lạc (Anrê Dũng Lạc).