General (Ret.) Amir Machmud was an Indonesian military general who was an eyewitness to the signing of the Supersemar document transferring power from President Sukarno to General Suharto.

The Order of Eleventh March, commonly referred to by its syllabic abbreviation Supersemar, was a document signed by the Indonesian President Sukarno on 11 March 1966, giving army commander Lt. Gen. Suharto authority to take whatever measures he "deemed necessary" to restore order to the chaotic situation during the Indonesian mass killings of 1965–66. The abbreviation "Supersemar" is also a play on the name of Semar, the mystic and powerful figure who commonly appears in Javanese mythology including wayang puppet shows. The invocation of Semar was presumably intended to help draw on Javanese mythology to lend support to Suharto's legitimacy during the period of the transition of authority from Sukarno to Suharto.