Billy Koumetio, born on 14 November 2002 (age 23), is a French central defender currently with Charlton Athletic, where he wears squad number 12. At 6ft 5in (1.95m), he is an imposing defender, though his senior career so far has been shaped less by projection than by the football he has actually managed to put together.
A short spell with Young Violets in 2022-23 gave him four league appearances, but Dundee has provided the real substance of his career to this point. Across two seasons at Dens Park, Koumetio made 40 league appearances, a far more meaningful run than the smaller stops elsewhere on his record.
He is now at Charlton Athletic, with five Championship appearances and two League Cup outings in 2026-27, giving him seven appearances in all competitions for the club. His current market value is around £340,000, according to Transfermarkt.
Koumetio’s career remains that of a developing centre-half trying to turn size and experience into a settled role. Dundee remains the clearest marker of where he has had sustained senior football.
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