Note: Flags indicate national team as has been defined under FIFA eligibility rules.
[4] On 5 June, Millwall announced their first pre-season friendly, against Gillingham.
[54] Three weeks later, a warm weather training camp in Spain was confirmed, with matches against Nottingham Forest and Real Murcia.
[55] On July 4, the club then confirmed its full pre-season schedule with additional friendlies against Bromley, Charlton Athletic, Reading, Colchester United and Southampton added.
[74][75] Win Draw Loss Fixtures Players with no appearances are not included on the list