Labour has selected Jack Sargeant as the party's Assembly candidate in Alyn and Deeside.
He'll fight the by-election caused by the death of his father Carl Sargeant.
He was named at a hustings event in Connah's Quay Civic Hall for the Alyn and Deeside seat.
Three candidates have now been picked but nominations don't close until next Wednesday for the by-election on February, 6.
They are: For the Conservative party - Sarah Atherton
For the Liberal Democrat party - Donna Lalek