Ali Larijani Iran's longest-serving speaker of the Majles (parliament; 2008–20) became one of the most consequential figures in Iran amid an intensifying crisis with the United States that began in 2025. (more) Ali Larijani Iranian government official Also known as: Ali Ardashir Larijani Written by Adam Zeidan Adam Zeidan is an Assistant Managing Editor, having joined Encyclopædia Britannica in 2018. Adam Zeidan Fact-checked by Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... Britannica Editors Last updated Feb. 28, 2026 •History Ali Larijani (born June 3, 1958, Najaf, Iraq) is the secretary of Iran’s Supreme National Security Council (SNSC; 2005–07; 2025– ) and a former speaker of the Majles (parliament; 2008–20). In those roles, he has been a top figure in conducting Iran’s nuclear policy and was instrumental in concluding the 2015 Joint Comprehensive Plan of Action (JCPOA) nuclear deal. He is tasked with leading the war effort in a potential confrontation with the United States...

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