2021–22 Athletic Bilbao season

The 2021–22 season was the 123rd season in the history of Athletic Bilbao and the club's 91st consecutive season in the top flight of Spanish football. In addition to the domestic league, Athletic Bilbao participated in this season's editions of the Copa del Rey and the Supercopa de España.

The first match of 2022 away to Osasuna was the 4,000th competitive fixture in the club's history (previous such milestones occurring in 1954, 1979 and 2001).

Matches
The league fixtures were announced on 30 June 2021.

Appearances and goals

 * ''Last updated on 22 May 2022.

! colspan=14 style=background:#dcdcdc; text-align:center|Goalkeepers

! colspan=14 style=background:#dcdcdc; text-align:center|Defenders

! colspan=14 style=background:#dcdcdc; text-align:center|Midfielders

! colspan=14 style=background:#dcdcdc; text-align:center|Forwards

! colspan=14 style=background:#dcdcdc; text-align:center|Players who have made an appearance this season but have left the club


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