| Mehrnoosh | |
| Birth Date: | 1 November 1976 |
| Birth Place: | Varamin, Iran |
| Genre: | Persian pop |
| Occupation: | Singer |
| Instrument: | Voice (mezzo-soprano) |
| Years Active: | 2011–present |
| Label: | Avang Music |
Mehrnoosh (fa|مهرنوش) (born November 1, 1976) is an Iranian Persian pop singer from Tehran. She currently lives in the state of Texas in the US after obtaining a Green Card through Diversity Visa Lottery. She is signed to the record label Avang Records, a California-based Iranian company.
She said in an interview with RadioJavan.com that most of her songs except videos, were done in Iran despite the many hardships she had to face as a woman. She mentioned Siavash Ghomeishi, a well-known Iranian pop songwriter and singer as her favorite. Prior to her musical work, she taught mathematics at the university level in Iran. She has a master's degree in statistics.