Stephen Kinnock, son of former Labour leader Neil Kinnock and his wife Glenys, has been chosen to represent Labour in Aberavon at the next general election.
Mr Kinnock beat a shortlist of six other candidates to fight the seat being vacated by Hywel Francis at the next election.
He was selected by a meeting of local members in Aberavon on Saturday, after a closely fought contest.
He promised to use his business background to bring more jobs to the area through Tata Steel and the development of Port Talbot’s harbour for container ships.
Mr Kinnock also said he would seek to work with councillors and the Aberavon AM David Rees on the issue of the possible closure of junction 41 on the M4.
He said: “Hywel Francis has been a fantastic advocate for the constituency in Westminster and he leaves very big shoes to fill.
“My campaign starts now and I’m looking forward to pounding the pavements and putting Labour’s offer to the people of Aberavon.”
Mr Kinnock made the headlines in December when his wife, Danish Prime Minister Helle Thorning-Schmidt, took a ‘selfie’ photo with US President Barack Obama and Prime Minister David Cameron during the Nelson Mandela memorial service in Johannesburg.
Although his family live in Copenhagen, Mr Kinnock is based in London and works for the business advisory company Xynteo. The couple, who have two daughters, married in 1996.
He said: “Helle and I have been living like this for many years and we’ve always found a way to make it work. We’ve obviously discussed my plans, and she is very supportive.”
The unsuccessful candidates were Gavin Freeguard from Port Talbot, Jeremy Miles from Pontarddulais, Neath town mayor Mark Fisher, Parmjit Dhanda, who was the Member of Parliament for Gloucester from 2001 to 2010, Sandfields West councillor Suzanne Paddison and Sarah Woodall from Abergavenny.