Karl Wilhelm August Reifferscheid (3 October 1835 – 10 November 1887) was a German archaeologist and classical philologist.
He was born and educated in Bonn. He received a traveling fellowship in archaeology from the University of Bonn, and spent 1861–66 mostly in Italy, part of the time fulfilling a request by the Vienna Academy to do archival research for the Corpus Scriptorum Ecclesiasticorum Latinorum. He was professor at Breslau (1868–85), and beginning in 1885, a professor at the University of Strassburg (Kaiser-Wilhelm-Universität).
Reifferscheid died in Strassburg, Alsace-Lorraine.
His works include: