Joseph Bartholomew Casagrande (February 14, 1915 – June 2, 1982) was an American anthropologist.
When his parents divorced, Casagrande and his mother moved to West Allis, Wisconsin and later Whitefish Bay.
After graduating from Whitefish Bay High School as a multisport student athlete, Casagrande earned a bachelor's degree from the University of Wisconsin in 1938, and completed a doctorate in anthropology at Columbia University in 1951.
He began teaching at the University of Illinois at Urbana–Champaign in 1960, and co-founded the school's department of anthropology alongside Julian Steward, Oscar Lewis, and Kenneth L. Hale.
Over the course of his career, Casagrande was granted fellowship by the AAA, the Royal Anthropological Institute of Great Britain and Ireland, the Society for Applied Anthropology, and the American Association for the Advancement of Science.