Ali Salih al-Sa'di ( Arabic: علي صالح السعدي; 1928 – September 19, 1977) was an Iraqi politician. He was General Secretary of the Iraqi branch of the Ba'ath Party from the late 1950s until the November 1963 Iraqi coup d'état. From February 8, 1963 (Ramadan Revolution) until the November 1963 Iraqi coup d'état, he was deputy prime minister under Ahmed Hassan al-Bakr, minister of the interior and as commander of the National Guard (Al-Haras al-Watani).
The Ramadan Revolution, also referred to as the 8 February Revolution and the February 1963 coup d'état in Iraq, was a military coup by the Iraqi branch of the Ba'ath Party in February 1963 that overthrew the prime minister of Iraq, Abdul-Karim Qasim in favour of a Ba'athist government. The coup was followed nine months later by a counter coup that saw the removal of the new government and a purging of Ba'ath Party members.
The most powerful leader of the Ba'athist government that emerged from the coup was the secretary general of the Iraqi Ba'ath Party, Ali Salih al-Sa'di, who controlled the National Guard militia and organized a massacre of hundreds—if not thousands—of suspected communists and other dissidents following the coup. Qasim's former deputy, Abdul Salam Arif, who was not a Ba'athist, was given the largely ceremonial title of president, while prominent Ba'athist general Ahmed Hassan al-Bakr was named prime minister.