Millwall U23 is the reserve team of the professional football club Millwall FC, based in London, England. The team competes in the Professional Development League, which is the top tier of youth football in England.

The Millwall U23 team serves as a crucial stepping stone for young players looking to break into the first team squad. The club has a strong focus on developing homegrown talent and providing opportunities for promising young players to showcase their skills and progress in their football careers.

Known for their competitive spirit and strong work ethic, the Millwall U23 team is a force to be reckoned with in youth football competitions. With a dedicated coaching staff and a supportive fan base, the team is committed to nurturing the next generation of footballing talent and upholding the proud tradition of Millwall FC.