Albert Freiherr von Schrenck-Notzing (18 May 1862 – 12 February 1929) was a German physician, psychiatrist and notable psychical researcher, who devoted his time to the study of paranormal events connected with mediumship, hypnotism and telepathy. He investigated Spiritualist mediums such as Willi Schneider, Rudi Schneider, and Valentine Dencausse. He is credited as the first forensic psychologist by Guinness World Records.