Derek Mazou-Sacko (born 6 October 2004) is a French professional footballer who plays as a central midfielder for club Millwall.
On 18 December 2021, Mazou-Sacko made his professional debut for Troyes in a Coupe de France match against Nancy. The match ended in a 4âÂÂ2 penalty shoot-out victory for Nancy after a 1âÂÂ1 draw.
On 11 July 2024, Mazou-Sacko signed a three-year contract with Rodez.
On 31 August 2025, Mazou-Sacko joined Millwall on a long-term contract for an undisclosed fee.
Born in France, Mazou-Sacko is Ivorian by descent. He is a France youth international, and has represented his country at under-18 level.