2021–22 Olympiacos F.C. season

The 2021–22 season was the 97th season in existence of Olympiacos and the club's 63rd consecutive season in the top flight of Greek football. Olympiacos participated in the Greek Super League winning their 47th title (3rd in a row), finishing 19 points ahead of PAOK who came second. Olympiacos also participated in this season's Greek Cup, UEFA Champions League and UEFA Europa League. During the season Pedro Martins became the longest-serving Piraeus coach in a single term. The season covers the period from July 2021 to late May 2022.

Out on loan
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In
(B team)

(B team) (B team) (B team) (B team) (B team) (B team) (B team) (B team) (B team) (B team) (B team)

Total Spending: €12.22M

Out
Total Income: €11.80M

Net Income: €0.42M

Group stage
The group stage draw was held on 27 August 2021.

Knockout round play-offs
The knockout round play-offs draw was held on 13 December 2021.

Goalscorers
Own goals: 2