Knut Detlef Folkerts (born 1 January 1952 in Singen, Baden-Württemberg, Germany) is a former member of the terrorist group, the Red Army Faction (RAF).
In 1977 he was sentenced to 20 years in prison in the Netherlands for murder.
Later he was convicted and sentenced to life imprisonment in West Germany for crimes including the murder of public prosecutor Siegfried Buback: however he was then released from prison in 1995 when doubts were raised about the reliability of the original conviction in Germany.