2008–09 Olympiacos B.C. season

Olympiacos Piraeus B.C. 2008–2009 season was the 2008–09 basketball season for Greek professional basketball club Olympiacos.

The club competed in:
 * 2008–09 Euroleague
 * 2008–09 Greek Basket League
 * Greek Basketball Cup

Squad changes for the 2008–09 season
In:

Out:

Out on loan:

Regular season
Group A

Regular season
Pts=Points, Pld=Matches played, W=Matches won, L=Matches lost, F=Points for, A=Points against, D=Points difference