2020–21 Professional U23 Development League
The 2020–21 Professional U23 Development League was the ninth season of the Professional Development League system.
Burnley U23s, Crystal Palace U23s and Leeds United U23s joined the Premier League 2 for the 2020–21 season after gaining category one status academies. Prior to the start of the season Swansea City left the league after downgrading their academy to category two.