Pahlavi Iran, officially the Imperial State of Persia until 1935 and the Imperial State of Iran from 1935 to 1979, was the Iranian state under the rule of the Pahlavi dynasty. The Pahlavi dynasty was created in 1925 and lasted until 1979, when it was ousted as part of the Islamic Revolution, which ended Iran's continuous monarchy and established the current Islamic Republic of Iran.

The Pahlavi dynasty is an Iranian royal dynasty that ruled for almost 54 years between 1925 and 1979. The dynasty was founded by Reza Shah Pahlavi, a non-aristocratic Mazanderani soldier in modern times, who took on the name of the Pahlavi language spoken in the pre-Islamic Sasanian Empire to strengthen his nationalist credentials.