The Arab Opinion Index data provides a look at a number of important issues, including assessments of foreign policy. Every year, the Index asks respondents across the Arab world their opinions on regional and world powers as well as specific foreign policy developments. Aggregate opinions may provide a general assessment of where the Arab world stands, but to understand fully the divisions and polarization that exists in the region today, it is important to look at country differences. In this paper, we will review Arab public opinion towards Iran, and whether there are sub-regional variations in assessment towards Iranian foreign policy. In this way, we can gauge whether polarization on the Iranian issue exists, and where it is most prevalent.