| United Front of Principlists | |
| Native Name: | جبههٔ متحد اصولگرایان |
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| Native Name Lang: | fa |
| Leader: | Mohammad-Reza Mahdavi Kani (2012)[1] |
| Spokesperson: | Ali Akbar Velayati[2] |
| Leader1 Title: | Executive Secretary |
| Leader1 Name: | Shahab od-Din Sadr (2008)[3] Manouchehr Mottaki (2012) |
| Leader2 Title: | Head of Election Campaign |
| Leader2 Name: | Alireza Zakani (2012) |
| Merger: | Principlists Pervasive Coalition |
| Split: | Alliance of Builders of Islamic Iran |
| Successor: |
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| Founded: | 2008 |
| Dissolved: | 2015 |
| Slogan: |
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| National: | Principlists |
| Blank1 Title: | 2008 Member Alliances |
| Blank1: | |
| Blank2 Title: | 2012 Member Alliances |
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| Headquarters: | Tehran, Iran |
| Seats1 Title: | 8th Parliament |
| Seats1: | [4] [5] |
| Seats2 Title: | 9th Parliament |
| Seats2: | [6] |
| Website: | www.jebhemottahed.ir |
| Country: | Iran |
United Front of Principlists (Persian: جبههٔ متحد اصولگرایان, Jabhah-e Muttahid-e Uṣūlgarāyān) was an Iranian principlist political coalition that contested the 2008 and 2012 legislative elections.