|Chair of the Political and Executive Committee||Behruz Khaligh|
|Split from||Organization of Iranian People's Fedai Guerrillas|
|Ideology|| Social democracy |
|National affiliation||Union of People's Fedaian of Iran|
The Organization of Iranian People's Fadaian (Majority) (Persian : سازمان فدائیان خلق ایران (اکثریت), translit. Sāzmān-e fedaiyān-e khalq-e Irān (aksariat); lit. Organization of self-sacrificers of the people of Iran) is an Iranian left-wing opposition political party in exile. The OIPFM advocates for an Iranian secular republic and the overthrow the current Islamic Republic of Iran government.
An ofshoot of the Organization of Iranian People's Fedai Guerrillas, it was consedered the largest communist organization of Iran from 1980 to 1991.The party currently holds Social democratic views.
During the period of 1981–83, OIPFM was principally supportive of the Islamic government's policies in various aspects, including the conflict with Iraq, anti-American positions, and certain aspects of their economic reforms; however they were not legally permitted to pursue activities. During these years, several of its members received death sentences and hundreds were imprisoned. In 1983 most of the group's members fled abroad.
On 23 October 2007, the OIPFM held an official meeting with European representatives in the European Parliament and then, both in October 2009 and in July 2010, it held a joint meeting with four other Iranian parties with a European delegation in Brussels.In 2016, it united with another Iranian Left Party called the Union of People's Fedaian of Iran.