| Club: | Standard Liège |
| Season: | 2009–10 |
| Manager: | László Bölöni (until February 10) Dominique D'Onofrio (from 10 February) |
| Chairman: | Reto Stiffler |
| Stadium: | Stade Maurice Dufrasne |
| Cup1: | Belgian Pro League |
| Cup1 Result: | 6th |
| Cup2: | Belgian Cup |
| Cup2 Result: | Seventh round |
| Cup3: | UEFA Champions League |
| Cup3 Result: | Third in group stage |
| Cup4: | UEFA Europa League |
| Cup4 Result: | Quarter-finals |
| League Topscorer: | Milan Jovanović (10) |
| Prevseason: | 2008–09 |
| Nextseason: | 2010–11 |
During the 2009–10 Belgian football season, Standard Liège competed in the Belgian Pro League.
Having won the title the past two seasons running, Liège were looking to make it a hat-trick of title, but very quickly fell off the title race. Manager László Bölöni resigned in February with the club 19 points adrift of leaders Anderlecht. He was replaced by Dominique D'Onofrio, brother of club vice-president Lucien and Liège's former technical director between 2002 and 2006. However, the club's form failed to improve making them finish in eighth place, two points adrift of the title play-offs - as a result, failing to qualify for European competition.
Liège's kits were sponsored by Belgian telecommunications company BASE.
Squad at end of season[1]
See main article: 2009–10 UEFA Champions League.
See main article: 2009–10 UEFA Europa League.
See main article: 2009–10 UEFA Europa League knockout phase.
Hamburg won 5 - 2 on aggregate.