| 2017–18 season | |||
|---|---|---|---|
| Chairman | John Berylson | ||
| Manager | Neil Harris | ||
| Stadium | The Den | ||
| EFL Championship | Pre-Season | ||
| FA Cup | Enter in 3rd Round | ||
| EFL Cup | Enter in 1st Round | ||
| 
 | |||
The 2017–18 season is Millwall's 132nd year in existence, 91st consecutive season in The Football League and 41st in the second tier. Millwall return to The Championship after a two-year absence. They secured promotion from League One via the playoffs. Millwall will also compete in the FA Cup and the League Cup. The season covers the period from 1 July 2017 to 30 June 2018.