The Lviv State Aviation Repair Plant (Львівський Державний авіаційно-ремонтний завод, abbreviated as LDARZ) is an aircraft repair plant of the Ukrainian Defense Industry.

On 15 October 1939, in Lviv, in the former hangars of the 6th Aviation Regiment of the Polish Air Force, the 133rd Stationary Aviation Repair Workshops (SAM) were created, tasked with repair and maintenance of Soviet Air Force aircraft based in the western region of the Soviet Union.

After the liberation of Lviv, the 133rd SAM returned to its previous base aboard trains beginning in September 1944.

The plant's aviation specialisation was selected to be light front-line fighters and fighter-bombers of the "MiG" type.

[1] On 18 March 2022, during the Russian invasion of Ukraine, four cruise missiles hit the plant.

According to Lviv Mayor Andriy Sadovyi, his building was destroyed as a result of the attack.