The Lions kept in touch with the play-off race for much of last term, but faced a tall order as they headed into the final day needing a lot of results to fall their way in order to sneak in dramatically at the last.
A defeat by already promoted Bournemouth ultimately ended their hopes, with Millwall now also having to accept the departure of key winger Jed Wallace, who will complete a free transfer to rivals West Brom.
Milwall face a tough start to the new second-tier campaign, with trips to Sheffield United, Swansea, Norwich and Burnley all coming up before the end of August.
Owing to the inaugural winter World Cup in Qatar, the Championship will pause in November, and Millwall travel to Preston in their final contest before that break on November 12.
Unlike the Premier League, which is back on Boxing Day, the Championship returns after the World Cup group stages are over on December 10. Millwall host newly-promoted Wigan in their first game back, with Watford, Bristol City and Rotherham all on the festive fixture slate.
Rowett’s men finish the season at home to Blackburn on May 6.
Millwall complete Championship 2022/23 fixture list
30/07/2022 15:00 Millwall v Stoke City
06/08/2022 15:00 Sheffield United v Millwall
13/08/2022 15:00 Millwall v Coventry City
16/08/2022 19:45 Swansea City v Millwall
20/08/2022 15:00 Norwich City v Millwall
27/08/2022 15:00 Millwall v Reading
30/08/2022 19:45 Burnley v Millwall
03/09/2022 15:00 Millwall v Cardiff City
10/09/2022 15:00 Sunderland v Millwall
14/09/2022 19:45 Millwall v Queens Park Rangers
17/09/2022 15:00 Millwall v Blackpool
01/10/2022 15:00 Blackburn Rovers v Millwall
05/10/2022 19:45 Rotherham United v Millwall
08/10/2022 15:00 Millwall v Middlesbrough
15/10/2022 15:00 Bristol City v Millwall
19/10/2022 19:45 Millwall v Watford
22/10/2022 15:00 Millwall v West Bromwich Albion
29/10/2022 15:00 Huddersfield Town v Millwall
02/11/2022 19:45 Birmingham City v Millwall
05/11/2022 15:00 Millwall v Hull City
12/11/2022 15:00 Preston North End v Millwall
10/12/2022 15:00 Millwall v Wigan Athletic
17/12/2022 15:00 Luton Town v Millwall
26/12/2022 15:00 Watford v Millwall
29/12/2022 19:45 Millwall v Bristol City
01/01/2023 15:00 Millwall v Rotherham United
14/01/2023 15:00 Middlesbrough v Millwall
21/01/2023 15:00 Cardiff City v Millwall
28/01/2023 15:00 Millwall v Burnley
04/02/2023 15:00 Millwall v Sunderland
11/02/2023 15:00 Queens Park Rangers v Millwall
14/02/2023 19:45 Coventry City v Millwall
18/02/2023 15:00 Millwall v Sheffield United
25/02/2023 15:00 Stoke City v Millwall
04/03/2023 15:00 Millwall v Norwich City
11/03/2023 15:00 Reading v Millwall
14/03/2023 19:45 Millwall v Swansea City
18/03/2023 15:00 Millwall v Huddersfield Town
01/04/2023 15:00 West Bromwich Albion v Millwall
07/04/2023 15:00 Millwall v Luton Town
10/04/2023 15:00 Hull City v Millwall
15/04/2023 15:00 Millwall v Preston North End
18/04/2023 19:45 Millwall v Birmingham City
22/04/2023 15:00 Wigan Athletic v Millwall
29/04/2023 15:00 Blackpool v Millwall
06/05/2023 15:00 Millwall v Blackburn Rovers
