The 2016–17 TFF First League, also known as PTT First League due to sponsoring reasons, was the 16th season since the league was established in 2001 and 54th season of the second-level football league of Turkey since its establishment in 1963–64.
Teams
Sivasspor, Eskişehirspor and Mersin İdmanyurdu relegated from 2015–16 Süper Lig. Adanaspor, Kardemir Karabükspor and Alanyaspor promoted to 2016–17 Süper Lig. Ümraniyespor, Manisaspor and Bandırmaspor promoted from 2015–16 TFF Second League. 1461 Trabzon, Kayseri Erciyesspor and Karşıyaka relegated to 2016–17 TFF Second League.