Manuel Martínez Coronado (1964 or 1965 – 10 February 1998) was a Guatemalan mass murderer, convicted for the killing of seven people on 17 May 1995.

[1] Manuel Martínez Coronado was a member of the Chortí ethnic group who worked as a peasant farmer.

[4] Despite pleas from Amnesty International to overturn the verdict, the Guatemalan authorities ruled that his sentence would be upheld.

It took eighteen minutes for him to die from the onset of drug administration; the sounds of his wife and children crying could be heard by the television audience throughout the ordeal.

[2][6] Coronado's mother claimed that he converted to Christianity on death row and had asked God for forgiveness.