ABSTRACT The discourse of Iranian nationalism exhibits distinct attributes, including Aryanism, anti-Arabism, and a yearning to restore ancient Iran. Originating during the Qajar period and prevailing throughout the Pahlavi era, this discourse faced marginalization following the Islamic Revolution, remaining dormant for three decades. However, in the past decade, it has experienced a gradual resurgence and gained media representation, termed ‘Iranian neo-nationalism’ for reasons elucidated in the introduction. This study aims to investigate the factors underlying this resurgence. Utilizing the qualitative content analysis method and the theory of politicized group identity from a social psychology perspective, the paper contends that this re-emergence is grounded in enduring political, cultural, and global processes, as well as immediate cognitive and psychological processes. These intertwined processes reveal an ‘identity security dilemma’ in Iran.