Billy Koumetio: Charlton confirm signing of French-Cameroonian defender from Dundee FC

Charlton Athletic have completed the signing of centre-back Billy Koumetio from Dundee FC, with the defender’s contract at The Valley running from 01/07/2026 to 30/06/2029.

The French-Cameroonian, 23, moves from the Scottish Premiership to the English Championship in a deal registered on 01/07/2026. The fee remains undisclosed, with the transaction officially listed as “?” on transfer documentation, though Koumetio arrives with a current market value of €400k.

Koumetio joins Charlton as a left-footed centre-back, adding height and physical presence at 1.95m to the London club’s defensive options. The move sees him swap Dundee FC, where he was on the books in Scotland’s top flight, for a new challenge in England’s second tier with Charlton, who are pushing to consolidate and strengthen their back line.

Born in Villeurbanne, Koumetio represents both France and Cameroon at national level in terms of eligibility and holds dual nationality. His switch to Charlton also confirms his status as an expatriate player, continuing a career path already shaped outside his countries of nationality. Having been registered in Scotland with Dundee FC, he now steps into the Championship, a division widely regarded as one of the most demanding and competitive second tiers in European football.

The defender’s profile is that of a modern centre-back: tall, left-footed, and comfortable operating in the heart of defence. His primary position is listed as defender – centre-back, and his attributes, combined with his age, made him an attractive proposition for Charlton’s recruitment team. With a market value of €400k at the time of the move, the London club have secured a player with both current utility and potential upside, especially if he adapts quickly to the intensity and tempo of the Championship.

Contract details confirm that Koumetio is tied to Charlton through to 30/06/2029, underlining the club’s long-term faith in his development. That duration gives him a substantial window to establish himself in England, compete for a regular starting place, and increase both his reputation and value.

The transfer marks another step in the career of a player who has already experienced football beyond his home environment, featuring in the Scottish Premiership with Dundee FC before this move to England. With his social media presence, including an active Instagram account, Koumetio is expected to attract interest from supporters keen to follow his progress at The Valley.

As he begins this new chapter, Koumetio’s immediate task will be to translate his physical and technical qualities into consistent Championship performances, with Charlton betting that a long-term commitment can unlock the full potential of their new French-Cameroonian centre-back.