The Soyuz-M (Russian: Союз, meaning "Union"), GRAU index 11A511M was a Soviet expendable carrier rocket designed by OKB-1 and manufactured by State Aviation Plant No. 1 in Samara, Russia. It was originally built to launch crewed Soyuz 7K-VI spacecraft for the Soviet armed forces. Following the cancellation of this programme, development of the rocket continued for the Soyuz 7K-S spacecraft. After this too was cancelled, Soyuz-M development was also abandoned, and the rockets that had been completed were used to launch reconnaissance satellites.