The Massacre of the Sixty, or Black Saturday (Amharic: ጥቁሩ ቅዳሜ, tikuru kidami), was an execution that took place in Addis Ababa, Ethiopia commissioned by the Derg government against 60 imprisoned former government officials at Kerchele Prison on the morning of 23 November 1974. The prison was commonly called Alem Bekagn - "Farewell to the World".

Ethiopian Revolution started about ten weeks before the massacre. Before this point, the Derg was able to instill hope among the people that the revolution could remain bloodless. Epitomised by the slogan "Ityopiya tikdem, yala mimin dem” — “Ethiopia first, without any bloodshed”.The massacre presaged the Red Terror and Ethiopian Civil War that would follow in years after.