77th Infantry Division of Khurasan

77th "Pirooz-e Samen-ol-A'emeh" Infantry Division of Khorasan is an infantry  division of the Ground Forces of Islamic Republic of Iran Army based in Mashhad, Razavi Khorasan Province. 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.

It was active during the Imperial Iranian regime during the 1970s. During the Iran-Iraq War the division fought in the Operation Fath ol-Mobin (March 1982), Operation Ramadan (July 1982), Operation Badr (March 1985), and Operation Karbala-6 in early 1987.