77th "Pirooz-e Samen-ol-A'emeh" Infantry Division of Khorasan (Persian: لشکر پیاده ۷۷ پیروز ثامن‌الائمه خراسان) is an infantry division of the Ground Forces of Islamic Republic of Iran Army based in Mashhad, Razavi Khorasan province.

[2] It was formerly being called 77th Infantry Division of Khorasan and was renamed to "The Victor of Samen-ol-A'emeh" (پیروز ثامن‌الائمه Pirooz-e Samen-ol-A'emeh) later after the successful Operation Samen-ol-A'emeh during Iran–Iraq War, which was led by this division.

One of the most famous episodes of the unit, came on May 9, 1982, when 6000 troops of this division were transported from Mashhad to Khuzestan in a single night.

This was possible as a result of using the Boeing 747 Iran possessed as a military transport aircraft, setting a new world record in the air transport history.

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