The 2005–06 TFF Lig A (known as Iddaa Lig A for sponsoring reasons) was the second-level football league of Turkey and the 43rd season since its establishment in 1963–64. At the end of the season, in which 18 teams competed in a single group, Bursaspor and Antalyaspor, which finished the league in the first two places, and the play-off winner Sakaryaspor were promoted to the upper league, while Mersin İdman Yurdu, Yozgatspor and Çanakkale Dardanelspor, which were in the last three places, were relegated.
Final standings
Results
Promotion play-offs
Promotion play-offs were organized in 19 Mayıs Stadium in Ankara between May 20 and May 24
Top goalscorers RankPlayerClubGoals1 Taner DemirbaşSakaryaspor20 Ufuk AteşAltay203 Coşkun BirdalAntalyaspor184 Fazlı UlusoyAltay155 Erol Kapusuzİstanbul BB13 Mehmet Yıldızİstanbulspor13 Serdar SinikTürk Telekom138 Murat BölükbaşSakaryaspor12 Özgür KarakayaKocaelispor1210 Hakan KeleşAntalyaspor11
References