2009–10 AZ Alkmaar season
| 2009–10 season | ||
|---|---|---|
| Manager | Ronald Koeman (until 5 December) Martin Haar (caretaker, from 5 December to 10 December) Dick Advocaat (from 10 December) | |
| Stadium | DSB Stadion | |
| Eredivisie | 5th | |
| KNVB Cup | Fourth round | |
| Johan Cruyff Shield | Winners | |
| UEFA Champions League | Group stage | |
| Top goalscorer | League: Mounir El Hamdaoui (20) All: Mounir El Hamdaoui (23) | |
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The 2009–10 season was Alkmaar Zaanstreek's 43rd competitive season, 12th consecutive season in the Eredivisie and 43rd year in existence as a football club. In addition to the domestic league, AZ participated in this season's editions of the KNVB Cup, Johan Cruyff Shield and UEFA Champions League.