The 2009–10 Primera Divisió was the fifteenth season of top-tier football in Andorra. It began in September 2009 and ended in May 2010. UE Sant Julià were the defending champions. FC Santa Coloma won the league championship and entered the first qualifying round of the 2010–11 UEFA Champions League, where they were defeated by Maltese side Birkirkara F.C. UE Engordany was relegated and will be replaced by Segona Divisió champions Casa Estrella del Benfica for the 2010–11 season.