| Competition: | Iran Football's 3rd Division |
| Season: | 2012–13 |
| Matches: | 533 |
| Total Goals: | 1309 |
| Prevseason: | 2011–12 |
| Nextseason: | 2013–14 |
The article contains information about the 2012–13 Iran 3rd Division football season. This is the 4th rated football league in Iran after the Persian Gulf Cup, Azadegan League, and 2nd Division. The league started from September 2012.
In total and in the first round, 70 teams will compete in 9 different groups. From the first round, 18 teams go through the second round. In the second round 18 teams will be divided in three groups of 6, where the winner of each group will be directly promoted to 2013–14 Iran Football's 2nd Division. The three group runner-up and the best third place team will go through play-off matches, where the two play-off winners also will be promoted. Therefore, in total, five team will be promoted from this league to Iran Football's 2nd Division.
The following 70 teams will compete in 2012–13 Iran Football's 3rd Division season.