The TFF 2. Lig (lit. 'TFF 2nd League'), currently referred to as Nesine 2. Lig for sponsorship reasons, is the third level in the Turkish football league system. It was founded in the 2001–02 season with the name of Turkish Second League Category B as a continuation of the then second level division. In the 2005–06 season the name of the league was changed to Lig B. Since the 2007–08 season the league's current name is used along with sponsor names.
Turkish Second Football League (in Turkish: Türkiye İkinci Futbol Ligi or shortly İkinci Lig or 2. Lig) is a defunct football league in Turkey. It was the second level division in Turkish football since its foundation in 1963–64 until the formation of the new league system in 2001–02. The Second Football League was divided into two categories in the 2001–02 season: Category A and Category B. Since 2007–08 Category A has continued as the TFF First League and Category B has continued as the TFF Second League.