الدوري السعودي الممتاز
The 2009–10 Saudi Professional League (known as the Zain Professional League for sponsorship reasons) was the 34th season of the Saudi Professional League, the top Saudi professional league for association football clubs, since its establishment in 1976. The season began on 18 August 2009, and ended on 18 March 2010. Al-Ittihad were the defending champions.