While other languages might be spoken depending on the specific location and demographics, Persian is the dominant language in Iran and is widely used in markets throughout the country.
Here are some other languages you might hear in a Persian market, depending on the location:
* Arabic: Spoken by a significant minority in Iran, particularly in areas bordering Iraq and the Persian Gulf.
* Turkish: Spoken by a small community in northwestern Iran.
* Kurdish: Spoken by the Kurdish population in western Iran.
* Azerbaijani: Spoken by the Azerbaijani population in northwestern Iran.
* English: May be spoken by some vendors, particularly in tourist areas.
Ultimately, while you'll likely encounter other languages in a Persian market, Persian will be the most commonly spoken language and the one you'll need to rely on most for communication.