The 2015–16 TFF First League, also known as PTT First League due to sponsoring reasons, is the 15th season since the league was established in 2001 and 53rd season of the second-level football league of Turkey since its establishment in 1963–64.
Updated to games played on 20 May 2016Source: [citation needed]Notes:1: Team played last season in Spor Toto Süper League 2: Team played last season in TFF Second League 3: Yeni Malatyaspor - 1461 Trabzon, Elazığspor - Altınordu, Samsunspor - Elazığspor and Karabükspor - Adanaspor games were played behind closed gates