Niroye Zamini
Pas Hamedan
Shahrdari Bandar Abbas
Shahrdari Mahshahr
Shahrdari Bam
Shahrdari Hamedan
Mes Novin Kerman
Naft Gachsaran
Naft Omidiyeh
Besat Kermanshah
Sepidrood Rasht
Shahrdari Fuman
Mes Shahr-e Babak
Sardar Bukan FC
Kheybar Khorramabad
Kaspian Qazvin
Damash Gilan
Avalan Kamyaran
Iranjavan Bushehr
Khoosheh Talai
Moghavemat Tehran
Persepolis Ganaveh
Esteghlal Ahvaz
Shahin Bushehr
Arvand Khorramshahr
Esteghlal Jonub
Navad Urmia
Palayesh Abadan
Esteghlal Ramshir
Sepehr Naghsh Jahan
Persepolis Mashhad
Qashqai Shiraz
Gol Abrisham Tehran
Shahrdari Kashan
Shamoushak Noshahr
Kimia Farayand
Sanaye Talaee
Shahrdari Urmia FC
Jahad Nasr
Mes Kerman
Foolad Khuzestan
Foolad Novin Ahvaz
Termeh Dastjerdi
Naft Tehran
Saba Qom
Naft Mased Soleiman
Rah Ahan
Siah Jamegan
Iranian football's 2nd division (Persian: ليگ دسته دوم ایران) is the third-highest football division overall in the Iranian football league system. Before 2001, the 2nd division league was the second-highest division in the national football league system. However, it was changed to third-highest division when Iran's football structure officially became professional.
The league consists of two, 14-team groups who play each other twice in a home and away format. The first- and second-placed teams in each group are automatically promoted to the Azadegan League. The bottom two teams in both groups are automatically relegated to the 3rd division.
If teams in the promotion or relegation spots are tied in terms of points, a home and away series will be played. The team with the best aggregate score will either avoid relegation or win promotion.
Sometimes these rules are not followed exactly. For example in the 2005–06 season, Deihim Ahvaz should have been relegated, but Nozhan Mazandaran despite finishing ahead of Deihim, were relegated instead because of the club's poor financial situation. Additionally the number of teams in each group was increased from twelve to fourteen this season.