Miguel Krassnoff Martchenko (born 15 February 1946 in Tyrol, Austria) is a Chilean military official involved in the 1973 putsch against president Salvador Allende.
He held several high-ranking positions in the Pinochet regime, including in the Chilean intelligence agency, DINA.
As such, he was responsible for the interrogation, torture, and disappearance of political prisoners at the detention center, Villa Grimaldi.
After Pinochet's demise, Krassnoff was convicted by Chilean courts of Crimes Against Humanity.