Shah (/ʃɑː/; Persian: شاه‎, romanized: Šāh, pronounced [ʃɒːh], "king") is a title given to the emperors, kings, princes and lords of Iran, a country the West has historically called Persia. The last monarchs of Iran to use the title of Shah were the Pahlavi dynasty, who came to power in 1925 and were overthrown in 1979. In 1935, Reza Shah requested the international community to refer to the country by its native name, Iran, effective 22 March that year.

While the title of "Shah of Iran" may be correctly applied to any number of "Monarchs of Persia" dating back to antiquity, this disambiguation focuses on shahs from 1925 onward.

The Shah of Iran, in the works of Harry Turtledove, may refer to:

Mohammad Reza Pahlavi, the last historical shah in OTL. As he was the only world leader to use that title during a crucial part of history, he was often called simply "the Shah" in international media, and is so referenced in the State of Jefferson Stories' "Tie a Yellow Ribbon".
Unnamed Shahanshah of Persia (Toxic Spell Dump), a fictional analog of Mohammad Reza referenced in The Case of the Toxic Spell Dump.
Unnamed Shah of Iran (Crosstime Traffic), head of a restored Iranian monarchy at the close of the 21st century in the Crosstime Traffic Series home timeline, which appears to be the future of OTL. He is briefly referenced in The Disunited States of America.
Unnamed Shah of Iran (Manuscript Tradition), head of a restored Iranian monarchy in the early 23rd century in "Manuscript Tradition," set in the future of OTL, referenced in passing.

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