This was manager Kenny Jackett's fifth and final season in charge of the club, he resigned at the end of the campaign on 7 May 2013.

[1] Millwall reached the semi-final of the FA-Cup for only the fifth time in their history, losing to Wigan Athletic.

In the league, Millwall flirted with the play-offs in the first half of the season, after a 13-game unbeaten run, but they finished poorly and narrowly avoided relegation by two points on the last day of the season.

Millwall kicked off their pre-season campaign with a tour of Ireland, playing in the Republic of Ireland for two games before crossing the border to finish with a match in Northern Ireland.

They returned to England for three more away games before the Football League Championship kicked off.