The 2009–10 Segunda Divisão season was the 76th season of the competition and the 60th season of recognised third-tier football in Portugal. Fátima were the defending champions.
الدوري البرتغالي الدرجة الثانية 2009–10 (بالبرتغالية: II Divisão B de 2009–10) هو موسم من الدوري البرتغالي الدرجة الثانية. فاز فيه نادي أروكا. (ar)
The 2009–10 Segunda Divisão season was the 76th season of the competition and the 60th season of recognised third-tier football in Portugal. Fátima were the defending champions. (en)
A II Divisão 2009/2010 é a 76ª edição do terceiro escalão do futebol português, realizada entre Setembro de 2009 e Junho de 2010. (pt)