Ulrich Heinrich Emil Richard Greifelt (8 December 1896 – 6 February 1949) was a German SS functionary and war criminal during the Nazi era.

[1] During the Weimar Republic, Greifelt worked as an economist at a Berlin joint-stock company until he was laid off in 1932 due to the difficult economic situation in Germany.

[3] After the beginning of the Second World War, Greifelt was appointed Chief of Staff of RKFDV (Reichskommissar für die Festigung deutschen Volkstums; Reich Commissioner for the Consolidation of German Nationhood) in October 1939.

He continued that those who "looked" German should be taken from orphanages, taken for examination at the SS-Rasse- und Siedlungshauptamt before undergoing extensive psychological study.

Those that were found to be of desirable racial stock were to be sent to German boarding schools and subsequently made available for adoption by the families of SS members, with their Polish origin to be concealed from any prospective parents.