The article contains information about the 2020–21 Iran 3rd Division football season.
The challenges caused by COVID-19 pandemic in Iran made some calendar changes in previous season's final matches.
The draw of the play-off round held on August 14, 2021, between following teams.
Shohadaye Razakan Karaj won 4–3 on aggregate and promoted to second play-off round.
[13] Shohadaye Razakan Karaj won 3–0 on aggregate and promoted to 2021-22 Iran Football's 2nd Division.