| Calendar: | Solar Hijri calendar |
| Num: | 7 |
| Days: | 30 |
| Season: | Autumn |
| Gregorian: | September-October |
| Prev Month: | Shahrivar |
| Next Month: | Aban |
Mehr (Persian: مهر, in Persian pronounced as /mehɾ/[1]) is the seventh month of the Solar Hijri calendar, the official calendar of Iran and Afghanistan. Mehr has thirty days. It begins in September and ends in October by the Gregorian calendar.
Mehr is the first month of autumn, and is followed by Aban.
It is named after the Iranian deity Mithra.