| Competition: | Iran Football's 2nd Division |
| Season: | 1998–99 |
| Nextseason: | 1999–2000 |
The 1998–99 Iran 2nd Division football season was played in four groups of nine teams each. The top two teams from each group advanced to the second round, and the top two team from that round (Bahman and Irsotter Noshahr) gained promotion to the Azadegan League.
Irsotter Noshahr promoted to 1999–2000 Azadegan League
Bahman promoted to 1999–2000 Azadegan League.
(Irsotter Noshahr did not show up, Bahman awarded championship 1998/99)