The 2015–16 season is Leeds United's sixth consecutive season in the Championship. Along with competing in the Championship, the club will also participate in the FA Cup and League Cup. The season covers the period from 1 July 2015 to 30 June 2016.

This is a list of the significant events to occur at the club during the 2014–15 season, presented in chronological order, starting on 2 May 2015 and ending on the final day of the club's final match in the 2015–16 season. This list does not include transfers or new contracts, which are listed in the transfers section below, or match results, which are in the results section.

Appearances (starts and substitute appearances) and goals include those in the Championship (and playoffs), League One (and playoffs), FA Cup, League Cup and Football League Trophy.

Sources: For loan start source see "Start source". For loan end source see "End source".
EU = if holds or not a European Union passport; Country: when 2 flags, 1st flag = country that plays for internationally, 2nd flag = country of birth; No. = number on jersey; P = Position (for position name, pause mouse pointer on abbreviation); Name = Name on jersey (for more extensive name, pause mouse pointer on name); In/Out = In: The player came in on loan, Out: The player went out on loan; Loan club = the club that the player moved on loan to or the club that the player came from on loan; Started = the date when the player's loan started; Ended = the date when the player's loan ended.

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