2009–10 Tunisian Ligue Professionnelle 1

The 2009–10 Tunisian Ligue Professionnelle 1(Tunisian Professional League) season was the 84th season of top-tier football in Tunisia. The competition began on 27 July 2009, and concluded on 15 May 2010. The defending champions from the previous season are Espérance de Tunis.

Teams relegated to CPL-2

 * AS Marsa
 * Jendouba Sport

Teams promoted from CPL-2

 * ES Zarzis
 * JS Kairouan