Ludolf-Hermann Emmanuel Georg Kurt Werner von Alvensleben was a Schutzstaffel (SS) functionary of Nazi Germany. He held positions of SS and Police Leader in occupied Poland and the Soviet Union, and was indicted for war crimes including the killing of at least 4,247 Poles by units under his command.

The House of Alvensleben is an ancient, Low German (niederdeutsch) noble family from the Altmark region, whose earliest known member, Wichard de Alvensleve, is first mentioned in 1163 as a ministerialis of the Bishopric of Halberstadt. The family name derives from Alvensleben Castle. They are one of the oldest extant German aristocratic families.