Aliou Dieng (born 16 October 1997) is a Malian professional footballer who plays as a defensive midfielder for Egyptian Premier League club Al Ahly and the Mali national team.
In July 2019, Dieng joined Egyptian club Al Ahly on a five-year contract for an undisclosed fee.
On 23 August 2024, Dieng joined Saudi Arabian club Al-Kholood on a one-year loan.
Dieng represented a local team of Mali at the 2016 African Nations Championship, and scored a penalty in their 2âÂÂ1 quarter-final win over Tunisia. In 2020, Dieng played for the Malian national team for the first time at non-local level, in 2âÂÂ1 victory against Namibia. With his home country, he also participated at the 2021 Africa Cup of Nations.
On 11 December 2025, Dieng was called up to the Mali squad for the 2025 Africa Cup of Nations.