The 1969 Sudanese coup d'état was a successful coup, led by Colonel Gaafar Nimeiry, against the government of President Ismail al-Azhari. The coup signaled the end of Sudan's second democratic era, and saw the beginning of Nimeiry's 16 year rule.

Since gaining independence in 1956, Sudan has witnessed a protracted series of coups d'état, totalling 19 coup attempts, of which 7 were successful, which places Sudan as the African nation with the most coup attempts and it ranks second globally, just behind Bolivia, which has recorded 23 coup attempts since 1950. This include the 1958 self coup, the 1985 and 2019 soft coups, and 1957 and 1959 Putsch.